From Medical EducationVolume 39 Issue 7 Page 732 - 2005
Context Problem-based learning (PBL) is widely used in higher education. There is evidence available that students and faculty are highly satisfied with PBL. Nevertheless, in educational practice problems are often encountered, such as tutors who are too directive, problems that are too well-structured, and dysfunctional tutorial groups.
Purpose The aim of this paper is to demonstrate that PBL has the potential to prepare students more effectively for future learning because it is based on four modern insights into learning: constructive, self-directed, collaborative and contextual. These four learning principles are described and it is explained how they apply to PBL. In addition, available research is reviewed and the current debate in research on PBL is described.
Discussion It is argued that problems encountered in educational practice usually stem from poor implementation of PBL. In many cases the way in which PBL is implemented is not consistent with the current insights on learning. Furthermore, it is argued that research on PBL should contribute towards a better understanding of why and how the concepts of constructive, self-directed, collaborative and contextual learning work or do not work and under what circumstances. Examples of studies are given to illustrate this issue.
Sunday, September 04, 2005
Answering multiple-choice questions in high-stakes medical examinations
From Medical EducationVolume 39 Issue 9 Page 890 - September 2005
Objectives To examine whether changing initial answers during a multiple-choice question (MCQ) test in medicine brings about better overall test results, as has been shown in other academic fields.
Methods A total of 36 answer books from the German Second National Medical Board Examination, with 580 MCQs (where 1 answer out of 5 must be selected), were used for analysis.
Results We confirmed that high-stakes MCQ test scores in medicine did indeed improve when students changed their answers once. Further changes of answers did not improve the scores.
Conclusions In written, high-stakes medical examinations, we recommend that students be encouraged, after further reflection, to change their answers in MCQ tests for questions for which they had previously had doubts about the answers.
Objectives To examine whether changing initial answers during a multiple-choice question (MCQ) test in medicine brings about better overall test results, as has been shown in other academic fields.
Methods A total of 36 answer books from the German Second National Medical Board Examination, with 580 MCQs (where 1 answer out of 5 must be selected), were used for analysis.
Results We confirmed that high-stakes MCQ test scores in medicine did indeed improve when students changed their answers once. Further changes of answers did not improve the scores.
Conclusions In written, high-stakes medical examinations, we recommend that students be encouraged, after further reflection, to change their answers in MCQ tests for questions for which they had previously had doubts about the answers.
Wednesday, August 31, 2005
Teaching pathology to medical undergraduates
From Current Diagnostic Pathology, Volume 11, Issue 5, October 2005, Pages 308-316
Dramatic curricular reforms in undergraduate medical education mean that many pathologists now find themselves involved in courses that are significantly different from those which they encountered as medical students. Department-led didactic courses in pathology have been replaced by centrally managed, problem-based integrated curricula in which pathology may at first be difficult to identify. This article discusses how curriculum reform has changed the ways in which medical students encounter pathologists and pathology, and the way in which pathology teaching is managed. The various teaching modalities that can be used to convey a knowledge of pathology are considered, with special reference to the autopsy. Finally, consideration is given to the necessity for those involved in undergraduate medical education to be proficient both in their own discipline and in teaching. Pathologists have a continuing role at all levels of the curriculum, from design and management through to delivery.
Dramatic curricular reforms in undergraduate medical education mean that many pathologists now find themselves involved in courses that are significantly different from those which they encountered as medical students. Department-led didactic courses in pathology have been replaced by centrally managed, problem-based integrated curricula in which pathology may at first be difficult to identify. This article discusses how curriculum reform has changed the ways in which medical students encounter pathologists and pathology, and the way in which pathology teaching is managed. The various teaching modalities that can be used to convey a knowledge of pathology are considered, with special reference to the autopsy. Finally, consideration is given to the necessity for those involved in undergraduate medical education to be proficient both in their own discipline and in teaching. Pathologists have a continuing role at all levels of the curriculum, from design and management through to delivery.
Saturday, August 20, 2005
Early practical experience and the social responsiveness of clinical education
From BMJ 2005;331:387-391
Objectives To find how early experience in clinical and community settings ("early experience") affects medical education, and identify strengths and limitations of the available evidence.
Design A systematic review rating, by consensus, the strength and importance of outcomes reported in the decade 1992-2001.
Data sources Bibliographical databases and journals were searched for publications on the topic, reviewed under the auspices of the recently formed Best Evidence Medical Education (BEME) collaboration.
Selection of studies All empirical studies (verifiable, observational data) were included, whatever their design, method, or language of publication.
Results Early experience was most commonly provided in community settings, aiming to recruit primary care practitioners for underserved populations. It increased the popularity of primary care residencies, albeit among self selected students. It fostered self awareness and empathic attitudes towards ill people, boosted students' confidence, motivated them, gave them satisfaction, and helped them develop a professional identity. By helping develop interpersonal skills, it made entering clerkships a less stressful experience. Early experience helped students learn about professional roles and responsibilities, healthcare systems, and health needs of a population. It made biomedical, behavioural, and social sciences more relevant and easier to learn. It motivated and rewarded teachers and patients and enriched curriculums. In some countries, junior students provided preventive health care directly to underserved populations.
Conclusion Early experience helps medical students learn, helps them develop appropriate attitudes towards their studies and future practice, and orientates medical curriculums towards society's needs. Experimental evidence of its benefit is unlikely to be forthcoming and yet more medical schools are likely to provide it. Effort could usefully be concentrated on evaluating the methods and outcomes of early experience provided within non-experimental research designs, and using that evaluation to improve the quality of curriculums.
Objectives To find how early experience in clinical and community settings ("early experience") affects medical education, and identify strengths and limitations of the available evidence.
Design A systematic review rating, by consensus, the strength and importance of outcomes reported in the decade 1992-2001.
Data sources Bibliographical databases and journals were searched for publications on the topic, reviewed under the auspices of the recently formed Best Evidence Medical Education (BEME) collaboration.
Selection of studies All empirical studies (verifiable, observational data) were included, whatever their design, method, or language of publication.
Results Early experience was most commonly provided in community settings, aiming to recruit primary care practitioners for underserved populations. It increased the popularity of primary care residencies, albeit among self selected students. It fostered self awareness and empathic attitudes towards ill people, boosted students' confidence, motivated them, gave them satisfaction, and helped them develop a professional identity. By helping develop interpersonal skills, it made entering clerkships a less stressful experience. Early experience helped students learn about professional roles and responsibilities, healthcare systems, and health needs of a population. It made biomedical, behavioural, and social sciences more relevant and easier to learn. It motivated and rewarded teachers and patients and enriched curriculums. In some countries, junior students provided preventive health care directly to underserved populations.
Conclusion Early experience helps medical students learn, helps them develop appropriate attitudes towards their studies and future practice, and orientates medical curriculums towards society's needs. Experimental evidence of its benefit is unlikely to be forthcoming and yet more medical schools are likely to provide it. Effort could usefully be concentrated on evaluating the methods and outcomes of early experience provided within non-experimental research designs, and using that evaluation to improve the quality of curriculums.
Wednesday, August 03, 2005
What motivates senior clinicians to teach medical students?
From BMC Medical Education 2005, 5:27
Background
This study was designed to assess the motivations of senior medical clinicians to teach medical students. This understanding could improve the recruitment and retention of important clinical teachers.
Methods
The study group was 101 senior medical clinicians registered on a teaching list for a medical school teaching hospital (The Canberra Hospital, ACT, Australia). Their motivations to teach medical students were assessed applying Q methodology.
Results
Of the 75 participants, 18 (24%) were female and 57 (76%) were male. The age distribution was as follows: 30-40 years = 16 participants (21.3%), 41-55 years = 46 participants (61.3%) and >55 years = 13 participants (17.3 %). Most participants (n=48, 64%) were staff specialists and 27 (36%) were visiting medical officers. Half of the participants were internists (n=39, 52%), 12 (16%) were surgeons, and 24 (32%) were other sub-specialists. Of the 26 senior clinicians that did not participate, two were women; 15 were visiting medical officers and 11 were staff specialists; 16 were internists, 9 were surgeons and there was one other sub-specialist. The majority of these non-participating clinicians fell in the 41-55 year age group. The participating clinicians were moderately homogenous in their responses. The main factors influencing motivation to teach medical students were intrinsic issues such as altruism, intellectual satisfaction, personal skills and truth seeking. The reasons for not teaching included no strong involvement in course design, a heavy clinical load or feeling it was a waste of time.
Conclusion
This study provides some insights into factors that may be utilised in the design of teaching programs that meet teacher motivations and ultimately enhance the effectiveness of the medical teaching workforce.
Background
This study was designed to assess the motivations of senior medical clinicians to teach medical students. This understanding could improve the recruitment and retention of important clinical teachers.
Methods
The study group was 101 senior medical clinicians registered on a teaching list for a medical school teaching hospital (The Canberra Hospital, ACT, Australia). Their motivations to teach medical students were assessed applying Q methodology.
Results
Of the 75 participants, 18 (24%) were female and 57 (76%) were male. The age distribution was as follows: 30-40 years = 16 participants (21.3%), 41-55 years = 46 participants (61.3%) and >55 years = 13 participants (17.3 %). Most participants (n=48, 64%) were staff specialists and 27 (36%) were visiting medical officers. Half of the participants were internists (n=39, 52%), 12 (16%) were surgeons, and 24 (32%) were other sub-specialists. Of the 26 senior clinicians that did not participate, two were women; 15 were visiting medical officers and 11 were staff specialists; 16 were internists, 9 were surgeons and there was one other sub-specialist. The majority of these non-participating clinicians fell in the 41-55 year age group. The participating clinicians were moderately homogenous in their responses. The main factors influencing motivation to teach medical students were intrinsic issues such as altruism, intellectual satisfaction, personal skills and truth seeking. The reasons for not teaching included no strong involvement in course design, a heavy clinical load or feeling it was a waste of time.
Conclusion
This study provides some insights into factors that may be utilised in the design of teaching programs that meet teacher motivations and ultimately enhance the effectiveness of the medical teaching workforce.
Tuesday, August 02, 2005
Tutoring in problem-based learning medical curricula: the influence of tutor background and style on effectiveness
From BMC Medical Education 2005, 5:20
Background
Evidence for the superiority of particular characteristics in PBL tutors in medical curricula is generally inconclusive. Most studies have investigated the effectiveness of content experts compared with that of non-experts as measured either by student satisfaction or academic achievement. A few have compared academic staff tutors with student tutors. The purpose of this study was to investigate the relationship between students' perception of overall tutor effectiveness, particular tutor behaviours, clinical qualifications and academic appointment.
Method
A questionnaire designed to evaluate particular aspects of PBL tutoring technique, related either to subject-matter knowledge or to process-facilitation skill, as well as overall effectiveness, was distributed to students in first year of a PBL medical program at the end of each of three tutor terms. A total of 76 tutor terms were included in the study. Data analysis compared clinical with non-clinical tutors, and staff with non-staff tutors.
Results
Clinically qualified tutors used their subject-matter knowledge significantly more than non-clinical tutors and were seen as being more empathic with their students. Staff tutors placed more emphasis on assessment than non-staff tutors and were seen as having greater skill in establishing and maintaining an environment of cooperation within their PBL groups than non-staff tutors.
Conclusion
These results suggest that both subject-matter knowledge and process-facilitation skills are necessary but not individually sufficient characteristics of effective tutors.
Background
Evidence for the superiority of particular characteristics in PBL tutors in medical curricula is generally inconclusive. Most studies have investigated the effectiveness of content experts compared with that of non-experts as measured either by student satisfaction or academic achievement. A few have compared academic staff tutors with student tutors. The purpose of this study was to investigate the relationship between students' perception of overall tutor effectiveness, particular tutor behaviours, clinical qualifications and academic appointment.
Method
A questionnaire designed to evaluate particular aspects of PBL tutoring technique, related either to subject-matter knowledge or to process-facilitation skill, as well as overall effectiveness, was distributed to students in first year of a PBL medical program at the end of each of three tutor terms. A total of 76 tutor terms were included in the study. Data analysis compared clinical with non-clinical tutors, and staff with non-staff tutors.
Results
Clinically qualified tutors used their subject-matter knowledge significantly more than non-clinical tutors and were seen as being more empathic with their students. Staff tutors placed more emphasis on assessment than non-staff tutors and were seen as having greater skill in establishing and maintaining an environment of cooperation within their PBL groups than non-staff tutors.
Conclusion
These results suggest that both subject-matter knowledge and process-facilitation skills are necessary but not individually sufficient characteristics of effective tutors.
Teaching Evidence-Based Medicine: Should We Be Teaching Information Management Instead?
From Academic Medicine (2005) 80: 685-689.
To encourage high-quality patient care guided by the best evidence, many medical schools and residencies are teaching techniques for critically evaluating the medical literature. While a large step forward, these skills of evidence-based medicine are necessary but not sufficient for the practice of contemporary medicine. Incorporating the best evidence into the real world of busy clinical practice requires the applied science of information management. Clinicians must learn the techniques and skills to focus on finding, evaluating, and using information at the point of care. This information must be both relevant to themselves and their patients as well as being valid. The authors discuss the need to teach the applied science of information management along with, or perhaps even instead of, teaching the basic science of evidence-based medicine. All students, residents, and practicing physicians need three skills to practice the best medicine: the ability to select foraging—"keeping up"—tools that filter information for relevance and validity, the skill to select and use a hunting—"just in time"—information tool that presents prefiltered information easily and in a quickly accessible form at the point of care, and the ability to make decisions by combining the best patient-oriented evidence with patient-centered care, placing the evidence in perspective with the needs and desires of the patient. This teaching of information management skills will prepare students and residents for a practice of medicine that requires lifelong learning.
To encourage high-quality patient care guided by the best evidence, many medical schools and residencies are teaching techniques for critically evaluating the medical literature. While a large step forward, these skills of evidence-based medicine are necessary but not sufficient for the practice of contemporary medicine. Incorporating the best evidence into the real world of busy clinical practice requires the applied science of information management. Clinicians must learn the techniques and skills to focus on finding, evaluating, and using information at the point of care. This information must be both relevant to themselves and their patients as well as being valid. The authors discuss the need to teach the applied science of information management along with, or perhaps even instead of, teaching the basic science of evidence-based medicine. All students, residents, and practicing physicians need three skills to practice the best medicine: the ability to select foraging—"keeping up"—tools that filter information for relevance and validity, the skill to select and use a hunting—"just in time"—information tool that presents prefiltered information easily and in a quickly accessible form at the point of care, and the ability to make decisions by combining the best patient-oriented evidence with patient-centered care, placing the evidence in perspective with the needs and desires of the patient. This teaching of information management skills will prepare students and residents for a practice of medicine that requires lifelong learning.
The Role of Basic Science Knowledge and Clinical Knowledge in Diagnostic Reasoning
The Role of Basic Science Knowledge and Clinical Knowledge in Diagnostic Reasoning: A Structural Equation Modeling Approach
From Academic Medicine (2005) 80: 765-773.
Purpose
To examine four theories on the role of basic science knowledge and clinical knowledge in diagnostic reasoning.
Method
In 2000-01, the authors tested the basic science and clinical knowledge and diagnostic performances of 59 family physicians and 184 second- to sixth-year medical students at Maastricht University, The Netherlands. Structural equation modeling was used to analyze the data. Four theoretical models were tested. In the first model only basic science knowledge is involved in diagnostic reasoning; in the second model only clinical knowledge is related to diagnostic reasoning; in the third model, clinical knowledge is related to diagnostic reasoning, but basic science knowledge is integrated in clinical knowledge; and in the fourth model, both basic science knowledge and clinical knowledge independently influence diagnostic reasoning.
Results
Forty-four (75%) of the family physicians and 184 (100%) of the students responded. The results indicated that the third model, which is based on the knowledge encapsulation theory, provided the best fit to the data, whereas the models that had directly related basic science knowledge with diagnostic performance did not fit the data adequately.
Conclusion
The results generally supported the third model by Schmidt and Boshuizen of knowledge encapsulation theory suggesting that basic science knowledge is activated in expert diagnostic reasoning through its relation with clinical knowledge.
From Academic Medicine (2005) 80: 765-773.
Purpose
To examine four theories on the role of basic science knowledge and clinical knowledge in diagnostic reasoning.
Method
In 2000-01, the authors tested the basic science and clinical knowledge and diagnostic performances of 59 family physicians and 184 second- to sixth-year medical students at Maastricht University, The Netherlands. Structural equation modeling was used to analyze the data. Four theoretical models were tested. In the first model only basic science knowledge is involved in diagnostic reasoning; in the second model only clinical knowledge is related to diagnostic reasoning; in the third model, clinical knowledge is related to diagnostic reasoning, but basic science knowledge is integrated in clinical knowledge; and in the fourth model, both basic science knowledge and clinical knowledge independently influence diagnostic reasoning.
Results
Forty-four (75%) of the family physicians and 184 (100%) of the students responded. The results indicated that the third model, which is based on the knowledge encapsulation theory, provided the best fit to the data, whereas the models that had directly related basic science knowledge with diagnostic performance did not fit the data adequately.
Conclusion
The results generally supported the third model by Schmidt and Boshuizen of knowledge encapsulation theory suggesting that basic science knowledge is activated in expert diagnostic reasoning through its relation with clinical knowledge.
The Roles of Cadaver Dissection and Radiologic Imaging in Teaching Anatomy
Viewpoint: Exploring the Human Interior: The Roles of Cadaver Dissection and Radiologic Imaging in Teaching Anatomy
For a variety of reasons, new radiological imaging techniques are supplanting traditional cadaver dissection in the teaching of human anatomy. The authors briefly review the historical forces behind this transition, and then explore the advantages and drawbacks of each approach. Cadaver dissection offers an active, hands-on exploration of human structure, provides deep insights into the meaning of human embodiment and mortality, and represents a profound rite of passage into the medical profession. Radiological imaging permits in vivo visualization, offers physiologic as well as anatomic insights, and represents the context in which contemporary practicing physicians most frequently encounter their patients' otherwise hidden internal anatomy. Despite its important strengths, radiology cannot simply substitute for cadaver dissection, and the best models for teaching gross anatomy will incorporate both cadaver dissection and radiological imaging.
From Academic Medicine (2005) 80: 745-749.
For a variety of reasons, new radiological imaging techniques are supplanting traditional cadaver dissection in the teaching of human anatomy. The authors briefly review the historical forces behind this transition, and then explore the advantages and drawbacks of each approach. Cadaver dissection offers an active, hands-on exploration of human structure, provides deep insights into the meaning of human embodiment and mortality, and represents a profound rite of passage into the medical profession. Radiological imaging permits in vivo visualization, offers physiologic as well as anatomic insights, and represents the context in which contemporary practicing physicians most frequently encounter their patients' otherwise hidden internal anatomy. Despite its important strengths, radiology cannot simply substitute for cadaver dissection, and the best models for teaching gross anatomy will incorporate both cadaver dissection and radiological imaging.
From Academic Medicine (2005) 80: 745-749.
Sunday, May 29, 2005
What, nurses training doctors?
Senior nurses could have their unofficial role in junior doctor training formalised under NHS modernisation plans.
The proposals, by NHS Education for Scotland (NES) researchers, are likely to prove controversial even among nurses, but NES research and training officer Jo Vallis, education development officer Ann Hesketh and Scotland's south east regional dean Stuart Macpherson suggest existing inadequacies in pre-registration house officer (PRHO) training need to be tackled using imaginative solutions.
Download PDF of this full article
The proposals, by NHS Education for Scotland (NES) researchers, are likely to prove controversial even among nurses, but NES research and training officer Jo Vallis, education development officer Ann Hesketh and Scotland's south east regional dean Stuart Macpherson suggest existing inadequacies in pre-registration house officer (PRHO) training need to be tackled using imaginative solutions.
Download PDF of this full article
Are you answering your students' "why" questions?
Background
Medical and pre-professional health students ask questions about human health that can be answered in two ways, by giving proximate and evolutionary explanations. Proximate explanations, most common in textbooks and classes, describe the immediate scientifically known biological mechanisms of anatomical characteristics or physiological processes. These explanations are necessary but insufficient. They can be complemented with evolutionary explanations that describe the evolutionary processes and principles that have resulted in human biology we study today. The main goal of the science of Darwinian Medicine is to investigate human disease, disorders, and medical complications from an evolutionary perspective.
Discussion
This paper contrasts the differences between these two types of explanations by describing principles of natural selection that underlie medical questions. Thus, why is human birth complicated? Why does sickle cell anemia exist? Why do we show symptoms like fever, diarrhea, and coughing when we have infection? Why do we suffer from ubiquitous age-related diseases like arteriosclerosis, Alzheimers and others? Why are chronic diseases like type II diabetes and obesity so prevalent in modern society? Why hasn't natural selection eliminated the genes that cause common genetic diseases like hemochromatosis, cystic fibrosis, Tay sachs, PKU and others?
Summary
In giving students evolutionary explanations professors should underscore principles of natural selection, since these can be generalized for the analysis of many medical questions. From a research perspective, natural selection seems central to leading hypotheses of obesity and type II diabetes and might very well explain the occurrence of certain common genetic diseases like cystic fibrosis, hemochromatosis, Tay sachs, Fragile X syndrome, G6PD and others because of their compensating advantages. Furthermore, armed with evolutionary explanations, health care professionals can bring practical benefits to patients by treating their symptoms of infection more specifically and judiciously. They might also help curtail the evolutionary arms race between pathogens and antibiotic defenses.
From BMC Medical Education 2005, 5:16 [pdf]
Medical and pre-professional health students ask questions about human health that can be answered in two ways, by giving proximate and evolutionary explanations. Proximate explanations, most common in textbooks and classes, describe the immediate scientifically known biological mechanisms of anatomical characteristics or physiological processes. These explanations are necessary but insufficient. They can be complemented with evolutionary explanations that describe the evolutionary processes and principles that have resulted in human biology we study today. The main goal of the science of Darwinian Medicine is to investigate human disease, disorders, and medical complications from an evolutionary perspective.
Discussion
This paper contrasts the differences between these two types of explanations by describing principles of natural selection that underlie medical questions. Thus, why is human birth complicated? Why does sickle cell anemia exist? Why do we show symptoms like fever, diarrhea, and coughing when we have infection? Why do we suffer from ubiquitous age-related diseases like arteriosclerosis, Alzheimers and others? Why are chronic diseases like type II diabetes and obesity so prevalent in modern society? Why hasn't natural selection eliminated the genes that cause common genetic diseases like hemochromatosis, cystic fibrosis, Tay sachs, PKU and others?
Summary
In giving students evolutionary explanations professors should underscore principles of natural selection, since these can be generalized for the analysis of many medical questions. From a research perspective, natural selection seems central to leading hypotheses of obesity and type II diabetes and might very well explain the occurrence of certain common genetic diseases like cystic fibrosis, hemochromatosis, Tay sachs, Fragile X syndrome, G6PD and others because of their compensating advantages. Furthermore, armed with evolutionary explanations, health care professionals can bring practical benefits to patients by treating their symptoms of infection more specifically and judiciously. They might also help curtail the evolutionary arms race between pathogens and antibiotic defenses.
From BMC Medical Education 2005, 5:16 [pdf]
Friday, April 01, 2005
A Snapshot of the Status of PBL in US Medical Schools, 2003-04
From Academic Medicine (2005) 80: 300-301
Purpose
Although the use of problem-based learning (PBL) is widespread in U.S. medical schools, its true prevalence is unknown. This study examined the prevalence of PBL in preclinical curricula.
Method
In 2003, a Web-based questionnaire was sent to education deans or directors of medical education at the 123 Liaison Committee on Medical Education-accredited medical schools in the United States. The respondents indicated whether or not they were using PBL and what percentage of faculty-student contact hours in the preclinical years used PBL.
Result
All 123 schools responded. Of them, 70% used PBL in the preclinical years. Of schools using PBL, 45% used it for less than 10% of their formal teaching, while 6% used it for more than half of their formal teaching. Of the 30% of schools not using PBL, 22% had used it in the past, and 2% had plans to incorporate it in the future.
Conclusions
Use of PBL is widespread in the preclinical curricula of U.S. medical schools. That use is limited, however, since fewer than 6% of programs use it for more than 50% of their instruction.
How is the PBL situation in Thailand?
Purpose
Although the use of problem-based learning (PBL) is widespread in U.S. medical schools, its true prevalence is unknown. This study examined the prevalence of PBL in preclinical curricula.
Method
In 2003, a Web-based questionnaire was sent to education deans or directors of medical education at the 123 Liaison Committee on Medical Education-accredited medical schools in the United States. The respondents indicated whether or not they were using PBL and what percentage of faculty-student contact hours in the preclinical years used PBL.
Result
All 123 schools responded. Of them, 70% used PBL in the preclinical years. Of schools using PBL, 45% used it for less than 10% of their formal teaching, while 6% used it for more than half of their formal teaching. Of the 30% of schools not using PBL, 22% had used it in the past, and 2% had plans to incorporate it in the future.
Conclusions
Use of PBL is widespread in the preclinical curricula of U.S. medical schools. That use is limited, however, since fewer than 6% of programs use it for more than 50% of their instruction.
How is the PBL situation in Thailand?
Problem-Based Learning Outcomes: The Glass Half-Full
From Academic Medicine (2005) 80: 294-299.
Purpose
To compare the characteristics and outcome data of students from a single institution with a two-track, problembased learning (PBL) and standard (STND) curriculum.
Method
PBL and STND students from nine graduating classes at Southern Illinois University School of Medicine were compared using common medical school performance outcomes (USMLE Step 1, USMLE Step 2, clerkship mean ratings, number of clerkship honors and remediation designations, and the senior clinical competency exam), as well as common admission and demographic variables.
Results
PBL students were older, and the cohort had a higher proportion of women. The two tracks had similar USMLE Step 1 and 2 mean scores and pass rates. Performance differences were significant for PBL students in two clerkships as well as in the clerkship subcategories of clinical performance, knowledge and clinical reasoning, and noncognitive behaviors. In addition, the proportion of PBL students earning honors was greater.
Conclusions
The traditional undergraduate educational outcomes for the PBL and STND students are very positive. In several of the clerkship performance measures, the PBL students performed significantly better, and in no circumstance did they perform worse than the STND students.
Purpose
To compare the characteristics and outcome data of students from a single institution with a two-track, problembased learning (PBL) and standard (STND) curriculum.
Method
PBL and STND students from nine graduating classes at Southern Illinois University School of Medicine were compared using common medical school performance outcomes (USMLE Step 1, USMLE Step 2, clerkship mean ratings, number of clerkship honors and remediation designations, and the senior clinical competency exam), as well as common admission and demographic variables.
Results
PBL students were older, and the cohort had a higher proportion of women. The two tracks had similar USMLE Step 1 and 2 mean scores and pass rates. Performance differences were significant for PBL students in two clerkships as well as in the clerkship subcategories of clinical performance, knowledge and clinical reasoning, and noncognitive behaviors. In addition, the proportion of PBL students earning honors was greater.
Conclusions
The traditional undergraduate educational outcomes for the PBL and STND students are very positive. In several of the clerkship performance measures, the PBL students performed significantly better, and in no circumstance did they perform worse than the STND students.
Tuesday, March 08, 2005
Do students have sufficient knowledge of clinical anatomy?
Introduction Comparisons of anatomy knowledge levels of students from various curricula show either no differences or small differences to the detriment of innovative schools. To pass judgement on the general level of students' anatomy knowledge, we need an absolute standard. The purpose of this study was to compare students' levels of anatomy knowledge as measured by a case-based anatomy test with standards set by different groups of experts.
Methods A modified Angoff procedure was used to establish an absolute standard against which the students' results could be evaluated. Four panels of 9 anatomists, 7 clinicians, 9 recent graduates and 9 Year 4 students, respectively, judged 107 items of an anatomy test. The students' results on these items were compared with the standards obtained by the panels.
Results If the standard established by the panel of Year 4 students was used, 64% of the students would fail the test. The standards established by the anatomists, clinicians and recent graduates would yield failure rates of 42%, 58% and 26%, respectively.
Conclusion According to the panels' standards, many students did not know enough about anatomy. The high expectations that the Year 4 students appeared to have of their peers may contribute to students' uncertainty about their level of anatomy knowledge.
From: Medical EducationVolume 39 Issue 3 Page 326 - March 2005
Methods A modified Angoff procedure was used to establish an absolute standard against which the students' results could be evaluated. Four panels of 9 anatomists, 7 clinicians, 9 recent graduates and 9 Year 4 students, respectively, judged 107 items of an anatomy test. The students' results on these items were compared with the standards obtained by the panels.
Results If the standard established by the panel of Year 4 students was used, 64% of the students would fail the test. The standards established by the anatomists, clinicians and recent graduates would yield failure rates of 42%, 58% and 26%, respectively.
Conclusion According to the panels' standards, many students did not know enough about anatomy. The high expectations that the Year 4 students appeared to have of their peers may contribute to students' uncertainty about their level of anatomy knowledge.
From: Medical EducationVolume 39 Issue 3 Page 326 - March 2005
Perceptions of dissection by students in one medical school
Perceptions of dissection by students in one medical school: beyond learning about anatomy. A qualitative study
Introduction The practice of dissection, as part of undergraduate medical education, has recently resurfaced in the public eye. This paper focuses on a number of important learning outcomes that were reported by Year 15 medical students in a British medical school, during the dissection sessions in the first 2 years of their training, as part of a wider qualitative research project into undergraduate medical education.
Methods A group of 29 students was selected by quota sampling, using the whole student population of the medical school as the sampling frame. Qualitative data were collected by 1 : 1 interviews with students and from formal non-participatory observations of dissection sessions.
Results Apart from learning to cope with the overt 'emotional confrontation' with the cadavers which assists anatomical learning, 7 additional covert learning outcomes were identified by the students: teamwork, respect for the body, familiarisation of the body, application of practical skills, integration of theory and practice, preparation for clinical work, and appreciation of the status of dissection within the history of medicine.
Discussion A number of medical schools have either removed the practical, hands-on aspect of dissection in the medical undergraduate curriculum or are seriously considering such a measure, on financial and/or human resource grounds. This study highlights the fact that dissection can impart anatomical knowledge as well as offer other relevant, positive learning opportunities to enhance the skills and attitudes of future doctors.
From: Medical EducationVolume 39 Issue 3 Page 318 - March 2005
Introduction The practice of dissection, as part of undergraduate medical education, has recently resurfaced in the public eye. This paper focuses on a number of important learning outcomes that were reported by Year 15 medical students in a British medical school, during the dissection sessions in the first 2 years of their training, as part of a wider qualitative research project into undergraduate medical education.
Methods A group of 29 students was selected by quota sampling, using the whole student population of the medical school as the sampling frame. Qualitative data were collected by 1 : 1 interviews with students and from formal non-participatory observations of dissection sessions.
Results Apart from learning to cope with the overt 'emotional confrontation' with the cadavers which assists anatomical learning, 7 additional covert learning outcomes were identified by the students: teamwork, respect for the body, familiarisation of the body, application of practical skills, integration of theory and practice, preparation for clinical work, and appreciation of the status of dissection within the history of medicine.
Discussion A number of medical schools have either removed the practical, hands-on aspect of dissection in the medical undergraduate curriculum or are seriously considering such a measure, on financial and/or human resource grounds. This study highlights the fact that dissection can impart anatomical knowledge as well as offer other relevant, positive learning opportunities to enhance the skills and attitudes of future doctors.
From: Medical EducationVolume 39 Issue 3 Page 318 - March 2005
Sunday, February 06, 2005
Sicily statement on evidence-based practice
BMC Medical Education 2005, 5:1
Background
A variety of definitions of evidence-based practice (EBP) exist. However, definitions are in themselves insufficient to explain the underlying processes of EBP and to differentiate between an evidence-based process and evidence-based outcome. There is a need for a clear statement of what Evidence-Based Practice (EBP) means, a description of the skills required to practise in an evidence-based manner and a curriculum that outlines the minimum requirements for training health professionals in EBP. This consensus statement is based on current literature and incorporating the experience of delegates attending the 2003 Conference of Evidence-Based Health Care Teachers and Developers ("Signposting the future of EBHC").
Discussion
Evidence-Based Practice has evolved in both scope and definition. Evidence-Based Practice (EBP) requires that decisions about health care are based on the best available, current, valid and relevant evidence. These decisions should be made by those receiving care, informed by the tacit and explicit knowledge of those providing care, within the context of available resources.
Health care professionals must be able to gain, assess, apply and integrate new knowledge and have the ability to adapt to changing circumstances throughout their professional life. Curricula to deliver these aptitudes need to be grounded in the five-step model of EBP, and informed by ongoing research. Core assessment tools for each of the steps should continue to be developed, validated, and made freely available.
Summary
All health care professionals need to understand the principles of EBP, recognise EBP in action, implement evidence-based policies, and have a critical attitude to their own practice and to evidence. Without these skills, professionals and organisations will find it difficult to provide 'best practice'.
Background
A variety of definitions of evidence-based practice (EBP) exist. However, definitions are in themselves insufficient to explain the underlying processes of EBP and to differentiate between an evidence-based process and evidence-based outcome. There is a need for a clear statement of what Evidence-Based Practice (EBP) means, a description of the skills required to practise in an evidence-based manner and a curriculum that outlines the minimum requirements for training health professionals in EBP. This consensus statement is based on current literature and incorporating the experience of delegates attending the 2003 Conference of Evidence-Based Health Care Teachers and Developers ("Signposting the future of EBHC").
Discussion
Evidence-Based Practice has evolved in both scope and definition. Evidence-Based Practice (EBP) requires that decisions about health care are based on the best available, current, valid and relevant evidence. These decisions should be made by those receiving care, informed by the tacit and explicit knowledge of those providing care, within the context of available resources.
Health care professionals must be able to gain, assess, apply and integrate new knowledge and have the ability to adapt to changing circumstances throughout their professional life. Curricula to deliver these aptitudes need to be grounded in the five-step model of EBP, and informed by ongoing research. Core assessment tools for each of the steps should continue to be developed, validated, and made freely available.
Summary
All health care professionals need to understand the principles of EBP, recognise EBP in action, implement evidence-based policies, and have a critical attitude to their own practice and to evidence. Without these skills, professionals and organisations will find it difficult to provide 'best practice'.
Friday, February 04, 2005
Teaching statistics to medical students using PBL: the Australian experience
BMC Medical Education
Background
Problem-based learning (PBL) is gaining popularity as a teaching method in UK medical schools, but statistics and research methods are not being included in this teaching. There are great disadvantages in omitting statistics and research methods from the main teaching. PBL is well established in Australian medical schools. The Australian experience in teaching statistics and research methods in curricula based on problem-based learning may provide guidance for other countries, such as the UK, where this method is being introduced.
Methods
All Australian medical schools using PBL were visited, with two exceptions. Teachers of statistics and medical education specialists were interviewed. For schools which were not visited, information was obtained by email.
Results
No Australian medical school taught statistics and research methods in a totally integrated way, as part of general PBL teaching. In some schools, statistical material was integrated but taught separately, using different tutors. In one school, PBL was used only for 'public health' related subjects. In some, a parallel course using more traditional techniques was given alongside the PBL teaching of other material. This model was less successful than the others.
Conclusions
There are several difficulties in implementing an integrated approach. However, not integrating is detrimental to statistics and research methods teaching, which is of particular concern in the age of evidence-based medicine. Some possible ways forward are suggested.
Background
Problem-based learning (PBL) is gaining popularity as a teaching method in UK medical schools, but statistics and research methods are not being included in this teaching. There are great disadvantages in omitting statistics and research methods from the main teaching. PBL is well established in Australian medical schools. The Australian experience in teaching statistics and research methods in curricula based on problem-based learning may provide guidance for other countries, such as the UK, where this method is being introduced.
Methods
All Australian medical schools using PBL were visited, with two exceptions. Teachers of statistics and medical education specialists were interviewed. For schools which were not visited, information was obtained by email.
Results
No Australian medical school taught statistics and research methods in a totally integrated way, as part of general PBL teaching. In some schools, statistical material was integrated but taught separately, using different tutors. In one school, PBL was used only for 'public health' related subjects. In some, a parallel course using more traditional techniques was given alongside the PBL teaching of other material. This model was less successful than the others.
Conclusions
There are several difficulties in implementing an integrated approach. However, not integrating is detrimental to statistics and research methods teaching, which is of particular concern in the age of evidence-based medicine. Some possible ways forward are suggested.
Monday, January 31, 2005
Comments from a Thai Doctor on World Class University Ranking
Dr. Kai, a Thai doctor of a university hospital, gave some comments after having known that "our university" is not ranked in the 200-top list in 2004, focussing on why university doctors have fewer publications than scientists do, and his view for resolving the problems. (Dr. Kai is still at UCL, UK for his training in neuromuscular diseases.)
....
I think that's because they (scientists, pdharma's editing) do not have exhuasted clinical service job to do ( I mean they have more time to concentrate on research without doing more boring administrative and clinical job and that's because the basis of work structure is different between the faculty) and they have many PhD or MSc students and teams like a man have 10 limbs to help their projects. Like Queen Square, the good quality research publication is run by PhD students and postdocs as it's a pre-requisite for futher SpR (Specialist Registrar. pdharmas's editing) training and the academic lecturer staff concentrates on research only and service is mostly run by hospital clinical staff. And they are co-operative with each other well. Unlike in thailand, they are just competitive among the others and lack of co-operation and everyone want to be the first author because the system of academic promotion is just score on the first author. For example, Fac of Science and Rama are not cooperative well in doing co-research and you have mentioned before Fac of Science sometimes feel that Rama just use fac of science as a techician! In my opinion, research that could be applied in clinical use or can answer to clinical problem (the clinician know this question but need some basic research support) are worth to do. Not just the research that scientists just want to do to fulfil their satisfaction and the result is just kept on the shelf and cannot apply like many theses of Mahidol. How many of them are referred to and used in practice. Only some of the trop med that are useful esp Malaria and tropical disease. But in the future, I think the trend will be like in Queen Square as there will be more clinician-scientist (2 in one), this basic + clinical research needed will be less problem.
I have raised the policy of dividing staff physician into research-oriented team ( for those who favorite and keen on doing research but do not like teaching or service), and clinical service with teaching oriented (for those who do like teaching and see the patient) and of course the criteria of positional promotion must be totally different criteria. This will booster the research publication.Only researchers will concentrate the research all days and do not worry about the service. But it's impossibles as Rama want 3 in one policy : good teacher, good service and good researcher at the same time so nothing is excellent in each item. I believe a guy can do the best job if that job is his favourite and he has time to concentrate on and under the appropriate circumstance without any distracting factors. Different person has different ability to do his different job.
---------------------------END
It does not mean that I (pdharmas) agree with all of Dr. Kai's comments. My point is that we have to learn from different ideas in order to understand the real problems that might be a blockage for cooperation in the future. I do know that most of our senior staff realize and know about the problems very well and have been trying so hard to improve the situation. Please click comments to see pdharmas's.
....
I think that's because they (scientists, pdharma's editing) do not have exhuasted clinical service job to do ( I mean they have more time to concentrate on research without doing more boring administrative and clinical job and that's because the basis of work structure is different between the faculty) and they have many PhD or MSc students and teams like a man have 10 limbs to help their projects. Like Queen Square, the good quality research publication is run by PhD students and postdocs as it's a pre-requisite for futher SpR (Specialist Registrar. pdharmas's editing) training and the academic lecturer staff concentrates on research only and service is mostly run by hospital clinical staff. And they are co-operative with each other well. Unlike in thailand, they are just competitive among the others and lack of co-operation and everyone want to be the first author because the system of academic promotion is just score on the first author. For example, Fac of Science and Rama are not cooperative well in doing co-research and you have mentioned before Fac of Science sometimes feel that Rama just use fac of science as a techician! In my opinion, research that could be applied in clinical use or can answer to clinical problem (the clinician know this question but need some basic research support) are worth to do. Not just the research that scientists just want to do to fulfil their satisfaction and the result is just kept on the shelf and cannot apply like many theses of Mahidol. How many of them are referred to and used in practice. Only some of the trop med that are useful esp Malaria and tropical disease. But in the future, I think the trend will be like in Queen Square as there will be more clinician-scientist (2 in one), this basic + clinical research needed will be less problem.
I have raised the policy of dividing staff physician into research-oriented team ( for those who favorite and keen on doing research but do not like teaching or service), and clinical service with teaching oriented (for those who do like teaching and see the patient) and of course the criteria of positional promotion must be totally different criteria. This will booster the research publication.Only researchers will concentrate the research all days and do not worry about the service. But it's impossibles as Rama want 3 in one policy : good teacher, good service and good researcher at the same time so nothing is excellent in each item. I believe a guy can do the best job if that job is his favourite and he has time to concentrate on and under the appropriate circumstance without any distracting factors. Different person has different ability to do his different job.
---------------------------END
It does not mean that I (pdharmas) agree with all of Dr. Kai's comments. My point is that we have to learn from different ideas in order to understand the real problems that might be a blockage for cooperation in the future. I do know that most of our senior staff realize and know about the problems very well and have been trying so hard to improve the situation. Please click comments to see pdharmas's.
Monday, January 24, 2005
Critical Thinking
Critical thinking and problem solving engage three interdependent components: knowledge base, processing skills, and insight (metacognition).
Critical thinking is the art of asking questions.
Which questions should I ask? Should I question the answers to the questions that I ask? Should I question the question? Are some questions better to ask than others? How do I recognize a useful as opposed to an unhelpful question? If thinking is something I do inside my head and I ask all these questions do I have to come up with the answers?”
Tips to start critical thinking
1. Describe – state what it is
2. Analyse – Break it down into its component parts and
3. Name the parts
4. Look at the relationships between the parts
5. What are the possible problems/issues with these relationships?
6. Evaluate the ‘problems’ is it an important issue/ why do you think that?
7. Imagine an alternative
8. Apply steps 1-7 to the alternative.
Another way to organize these eight steps is to use the general categories of
WHAT: background, context, part
HOW: Relationships ofparts, to each other and to the whole
WHY: The meaning of it:Why are the relationships between the parts structured that way
WHY NOT: Alternatives:How could it be different? What would it look like if it was different?
From Julia Hobson’s Critical Thinking workshop, Murdoch University, 2002.
Critical thinking is the art of asking questions.
Which questions should I ask? Should I question the answers to the questions that I ask? Should I question the question? Are some questions better to ask than others? How do I recognize a useful as opposed to an unhelpful question? If thinking is something I do inside my head and I ask all these questions do I have to come up with the answers?”
Tips to start critical thinking
1. Describe – state what it is
2. Analyse – Break it down into its component parts and
3. Name the parts
4. Look at the relationships between the parts
5. What are the possible problems/issues with these relationships?
6. Evaluate the ‘problems’ is it an important issue/ why do you think that?
7. Imagine an alternative
8. Apply steps 1-7 to the alternative.
Another way to organize these eight steps is to use the general categories of
WHAT: background, context, part
HOW: Relationships ofparts, to each other and to the whole
WHY: The meaning of it:Why are the relationships between the parts structured that way
WHY NOT: Alternatives:How could it be different? What would it look like if it was different?
From Julia Hobson’s Critical Thinking workshop, Murdoch University, 2002.
World Class University Ranking Criteria
As we know, there are two main organizations which analyse and report rankings of universities over the world.
1. Times Higher Education Supplement, THES, (for 200-top list)
2. Institute of Higher Education of Shanghai Jiao Tong (SJT) University (for 500-top list)
We already know whether we are on the 2004 list. It is "Law of Karma". Wrong policies never give good results. And now we are given another new policy (about how to give a budget to universities), which I do not think it would make us be in the World Class University List. However, it is beyond a scope of this post that is about ranking criteria.
Criteria of THES:
- Peer Review Score
- Int'l Faculty Score
- Int'l Student Score
- Faculty/Student Score
- Citation/Faculty Score
You can find more detail at http://www.thes.co.uk/worldrankings/
For the criteria of SJT University, there are four criteria and six indicators.
1. Quality of Education
- Alumni of an institution winning Nobel Prizes and Fields Medals: 10%
2. Quality of Faculty
- Staff of an institution winning Nobel Prizes and Fields Medals: 20%
- Highly cited researchers in 21 broad subject categories: 20%
3. Research Output
- Articles published in Nature and Science: 20%
(For institutions specialized in humanities and social sciences, N&S is not considered, and the weight of N&S is relocated to other indicators.)
- Articles in Science Citation Index-expanded and Social Science Citation Index: 20%
4. Size of Institute
- Academic performance with respect to the size of an institution: 10%
And here are the data sources SJT University uses:
- Nobel laureates
- Fields Medals
- Highly cited researchers
- Articles published in Nature and Science
- Articles in Science Citation Index-expanded and Social Science Citation Index
It does not mean that all those criteria are perfect, but at least it gives us ideas how to improve our universities.
1. Times Higher Education Supplement, THES, (for 200-top list)
2. Institute of Higher Education of Shanghai Jiao Tong (SJT) University (for 500-top list)
We already know whether we are on the 2004 list. It is "Law of Karma". Wrong policies never give good results. And now we are given another new policy (about how to give a budget to universities), which I do not think it would make us be in the World Class University List. However, it is beyond a scope of this post that is about ranking criteria.
Criteria of THES:
- Peer Review Score
- Int'l Faculty Score
- Int'l Student Score
- Faculty/Student Score
- Citation/Faculty Score
You can find more detail at http://www.thes.co.uk/worldrankings/
For the criteria of SJT University, there are four criteria and six indicators.
1. Quality of Education
- Alumni of an institution winning Nobel Prizes and Fields Medals: 10%
2. Quality of Faculty
- Staff of an institution winning Nobel Prizes and Fields Medals: 20%
- Highly cited researchers in 21 broad subject categories: 20%
3. Research Output
- Articles published in Nature and Science: 20%
(For institutions specialized in humanities and social sciences, N&S is not considered, and the weight of N&S is relocated to other indicators.)
- Articles in Science Citation Index-expanded and Social Science Citation Index: 20%
4. Size of Institute
- Academic performance with respect to the size of an institution: 10%
And here are the data sources SJT University uses:
- Nobel laureates
- Fields Medals
- Highly cited researchers
- Articles published in Nature and Science
- Articles in Science Citation Index-expanded and Social Science Citation Index
It does not mean that all those criteria are perfect, but at least it gives us ideas how to improve our universities.
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