Development of a Musculoskeletal Imaging Competency Examination for Physical Therapists.

The number of physical therapists with imaging ordering privileges is increasing; however, a known level of competency and knowledge is generally lacking within the profession, as is a method to determine practitioner competency. The purpose of this study was to develop a valid musculoskeletal (MSK) imaging competency examination for physical therapists. This 3-round Delphi method study utilized experts to reach consensus on examination content and development. Round 1 was completed by 37 experts. The last 2 rounds were completed by 35 experts. Experts rated questions on a 5-point Likert rating scale of importance (1 = not at all important, 5 = very important). Consensus was achieved with an a priori decision of (1) >75% agreement of the expert panel rating and ≥4 on the Likert scale, and (2) ≥.90 on Cronbach alpha and intraclass correlation coefficients. Experts recommended a passing score of 75%. The examination was subsequently reviewed by a panel of 5 radiologists. The Delphi method and radiologist panel review resulted in the 151-question Burley Readiness Examination (BRE) for MSK Imaging Competency. Interrater agreement and internal consistency of the Delphi panel were excellent, with an average intraclass correlation coefficient and Cronbach alpha of .928 and .950, respectively. The BRE is a tool that has the potential to demonstrate practitioners' level of baseline competency with MSK imaging. Additional testing among physical therapists will provide further validation and reliability of the examination. The use and application of diagnostic imaging is becoming more widespread in physical therapist practice throughout the United States. The BRE could potentially have broader implications for health care utilization and cost in the area of MSK imaging.

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