Research Article  |   February 2016
Validation of the Evidence-Based Practice Confidence (EPIC) Scale With Occupational Therapists
Author Affiliations
  • Julie Helene Clyde, MSc, OT Reg. (Ont.), was Graduate Student, Rehabilitation Sciences Institute, School of Graduate Studies, University of Toronto, Toronto, Ontario, at the time of the study
  • Dina Brooks, PhD, PT, is Professor, Department of Physical Therapy, Faculty of Medicine, University of Toronto, Toronto, Ontario
  • Jill I. Cameron, PhD, is Associate Professor, Department of Occupational Science and Occupational Therapy, Faculty of Medicine, University of Toronto, Toronto, Ontario
  • Nancy M. Salbach, PhD, PT, is Associate Professor, Department of Physical Therapy, Faculty of Medicine, University of Toronto, Toronto, Ontario; nancy.salbach@utoronto.ca
Article Information
Evidence-Based Practice / Professional Issues
Research Article   |   February 2016
Validation of the Evidence-Based Practice Confidence (EPIC) Scale With Occupational Therapists
American Journal of Occupational Therapy, February 2016, Vol. 70, 7002280010p1-7002280010p9. doi:10.5014/ajot.2016.017061
American Journal of Occupational Therapy, February 2016, Vol. 70, 7002280010p1-7002280010p9. doi:10.5014/ajot.2016.017061
Abstract

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.