The Evidence-based Practice Attitude Scale-36 (EBPAS-36): a brief and pragmatic measure of attitudes to evidence-based p
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RESEARCH
Open Access
The Evidence-based Practice Attitude Scale36 (EBPAS-36): a brief and pragmatic measure of attitudes to evidence-based practice validated in US and Norwegian samples Marte Rye1,2* , Elisa M. Torres3, Oddgeir Friborg1, Ingunn Skre1,2 and Gregory A. Aarons3
Abstract Background: Short and valid instruments for measuring factors facilitating or hindering implementation efforts are called for. This article describes (1) the adaptation of a shorter version of the Evidence-based Practice Attitude Scale (EBPAS-50 items), and (2) the psychometric properties of the shortened version in both US and Norwegian data. Methods: The US participants were mental health service providers (N = 418) recruited from clinics providing mental health services in San Diego County, California. The Norwegian participants were psychologists, psychiatric nurses, and psychology students (N = 838) recruited from the Norwegian Psychological Association and the Norwegian Nurses Organization. A confirmatory factor analysis (CFA) approach was used. Results: The reduction resulted in 36 items named EBPAS-36, and the original 12 factor model was maintained. The EBPAS-36 had acceptable model fit, as indicated by a low degree of misspecification errors in both the US (RMSEA = .045 (CI90% .040–.049); SRMR = .05) and the Norwegian data (RMSEA = .052 (CI90% .047–.056, SRMR = .07). Incremental model fit was fair in the US (CFI = .93, TLI = .91) and in the Norwegian samples (CFI = .91, TLI = .89). The internal consistency (Cronbach’s α) in the US and the Norwegian samples were good for the total EBPAS-36 score (.79 and .86, respectively) and were ranged from adequate to excellent for the subscales (US .60–.91 and Norway .61–.92). Conclusions: The EBPAS-36 has adequate psychometric properties both in US and Norwegian samples, hence indicating cross-cultural validity. It is a brief, pragmatic, and more user-friendly instrument than the EBPAS-50, yet maintains a broad scope by retaining the original 12 measurement domains. Keywords: Evidence-based practice, Evidence-based practice in psychology, Evidence-based treatments, Interventions, Implementation, Attitudes, Therapists, Mental health
Background Most evidence-based interventions never become implemented in real-world practice despite a substantial focus on implementation of evidence-based psychological interventions [1, 2]. A remedy is to increase knowledge about what makes implementation successful, and hence * Correspondence: [email protected]; [email protected] 1 Department of Psychology, Faculty of Health Sciences, UiT The Arctic University of Norway, N-9037 Tromsø, Norway 2 Division of Mental Health and Substance Abuse, University Hospital of North Norway, Tromsø, Norway Full list of author information is available at the end of the article
development and validation of pragmatic, yet psychometrically strong instruments, becomes crucial [3]. Use of instruments that cover a broad area of factors that facilitate or hinder implementation may provide valuable knowledge to help tailor im
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