IntroductionAs work hour limits change and time for formal education in residency decreases, primary care residencies struggle to fit essential subspecialty instruction into limited didactic time. Despite the high frequency of skin-related complaints in pediatrics, dermatology remains a significant knowledge gap for pediatricians. [1][2][3][4][5][6][7][8][9][10][11] Online learning tools can provide educational opportunities unrestricted by time or location.Online spaced education (SE) has been shown to be an effective and acceptable method for addressing knowledge and practice gaps in medical education.12-17 The SE approach is based on the spacing effect-the principle that exposure to concepts distributed and repeated over time improves learning.18 Online SE with questions uses both the spacing effect and the testing effect (the principle that testing improves knowledge retention while evaluating a learner's performance). In urology studies, Kerfoot et al 16 demonstrated knowledge gains that persist for up to 2 years. The method's promising results as an instruction tool have led to the increasing use of SE in medical education. Kerfoot and colleagues measured the efficacy of SE with improved scores on repeated administration of the same questions. 13,14,16,17 We sought to assess the generalizability of SE across different domains by creating an innovative SE program with clinical images of 4 common skin conditions. Our hypothesis was that SE would be an acceptable learning method and would significantly improve pediatrics residents' knowledge of pediatric dermatology when knowledge gain and application were assessed with an outcome measure different from the intervention (unique and isomorphic questions).
Methods
DesignParticipating residents were randomized into 2 groups (groups A and B) and exposed to 2 different courses. Group The authors would like to thank B. Price Kerfoot for his guidance in the planning stages of the study and spaceded.com for providing a secure site for the study.Corresponding author: Erin F. Mathes, MD, 1701 Divisadero Street, Box 0316, San Francisco, CA 94143-0316, 415.353.7880, mathese@derm.ucsf.edu Received February 18, 2013 revisions received September 18, 2013, and November 12, 2013; accepted December 2, 2013. DOI: http://dx.doi.org/10.4300/JGME-D-13-00056.1
AbstractBackground Spaced education (SE) has shown promise as an instructional tool that uses repeated exposure to the same questions, but information on its utility in graduate medical education is limited, particularly in assessing knowledge gain with outcome measures that are different from repeat exposure to the intervention questions.