BACKGROUND: Several studies have documented that physical examination knowledge and skills are limited among medical trainees. OBJECTIVES: The objective of the study is to investigate the efficacy and acceptability of a novel online educational methodology termed 'interactive spaced-education' (ISE) as a method to teach the physical examination. DESIGN: The design of the study is randomized controlled trial. PARTICIPANTS: All 170 second-year students in the physical examination course at Harvard Medical School were eligible to enroll. MEASUREMENTS: Spaced-education items (questions and explanations) were developed on core physical examination topics and were content-validated by two experts. Based on pilot-test data, 36 items were selected for inclusion. Students were randomized to start the 18-week program in November 2006 or 12 weeks later. Students were sent 6 spaced-education e-mails each week for 6 weeks (cycle 1) which were then repeated in two subsequent 6-week cycles (cycles 2 and 3). Students submitted answers to the questions online and received immediate feedback. An online end-of-program survey was administered. RESULTS:One-hundred twenty students enrolled in the trial. Cycles 1, 2, and 3 were completed by 88%, 76%, and 71% of students, respectively. Under an intent-to-treat analysis, cycle 3 scores for cohort A students [mean 74.0 (SD 13.5)] were significantly higher than cycle 1 scores for cohort B students [controls; mean 59.0 (SD 10.5); P < .001], corresponding to a Cohen's effect size of 1.43. Eighty-five percent of participants (102 of 120) recommended the ISE program for students the following year. CONCLUSIONS:ISE can generate significant improvements in knowledge of the physical examination and is very well-accepted by students.
RCT Entities:
BACKGROUND: Several studies have documented that physical examination knowledge and skills are limited among medical trainees. OBJECTIVES: The objective of the study is to investigate the efficacy and acceptability of a novel online educational methodology termed 'interactive spaced-education' (ISE) as a method to teach the physical examination. DESIGN: The design of the study is randomized controlled trial. PARTICIPANTS: All 170 second-year students in the physical examination course at Harvard Medical School were eligible to enroll. MEASUREMENTS: Spaced-education items (questions and explanations) were developed on core physical examination topics and were content-validated by two experts. Based on pilot-test data, 36 items were selected for inclusion. Students were randomized to start the 18-week program in November 2006 or 12 weeks later. Students were sent 6 spaced-education e-mails each week for 6 weeks (cycle 1) which were then repeated in two subsequent 6-week cycles (cycles 2 and 3). Students submitted answers to the questions online and received immediate feedback. An online end-of-program survey was administered. RESULTS: One-hundred twenty students enrolled in the trial. Cycles 1, 2, and 3 were completed by 88%, 76%, and 71% of students, respectively. Under an intent-to-treat analysis, cycle 3 scores for cohort A students [mean 74.0 (SD 13.5)] were significantly higher than cycle 1 scores for cohort B students [controls; mean 59.0 (SD 10.5); P < .001], corresponding to a Cohen's effect size of 1.43. Eighty-five percent of participants (102 of 120) recommended the ISE program for students the following year. CONCLUSIONS: ISE can generate significant improvements in knowledge of the physical examination and is very well-accepted by students.
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