Julie Helene Clyde, Dina Brooks, Jill I. Cameron, Nancy M. Salbach; Validation of the Evidence-Based Practice Confidence (EPIC) Scale With Occupational Therapists. Am J Occup Ther 2016;70(2):7002280010. https://doi.org/10.5014/ajot.2016.017061
Download citation file:
© 2021 American Occupational Therapy Association
OBJECTIVE. This study evaluated the reliability, minimal detectable change (MDC), and construct validity of the Evidence-Based Practice Confidence (EPIC) scale among occupational therapists.
METHOD. In a cross-sectional mail survey, 126 occupational therapists completed the EPIC scale and a questionnaire to provide data for validity testing. Seventy-nine occupational therapists (63%) completed a second EPIC scale a median of 24 days later.
RESULTS. Test–retest reliability was .92 (95% confidence interval [.88, .95]). The MDC values at the 90% and 95% confidence levels were 3.9 percentage points and 4.6 percentage points, respectively. The total EPIC score was significantly associated with holding a master’s or doctoral degree; education in evidence-based practice (EBP); higher EBP knowledge and skill; and frequently searching, reading, and using research findings in clinical decision making (p < .05).
CONCLUSION. The EPIC scale has excellent reliability and acceptable construct validity for use in evaluating EBP self-efficacy among occupational therapists.
The EPIC scale has excellent reliability and acceptable construct validity and demonstrates no overall floor or ceiling effect among occupational therapists.
The EPIC scale can be used for descriptive purposes, to monitor change in EBP self-efficacy over time, and as an outcome measure to evaluate the impact of continuing education with the aim of increasing self-efficacy in implementing the process of EBP.
Further research is needed to verify the unidimensionality of the EPIC scale for use among occupational therapists and to investigate the relationship between EBP self-efficacy and EBP skill and knowledge.
This PDF is available to Subscribers Only
For full access to this pdf, sign in to an existing account, or purchase an annual subscription.