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Research article
Anna Santesson
Hallands sjukhus Halmstad
Corresponding Author
ORCiD: https://orcid.org/0000-0003-2449-612X
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Background: High-quality instruments are essential for implementation practitioners and researcher; only valid and reliable measures can confidently and consistently measure what they are intended to measure. Psychometrically sound and pragmatic measures have the potential to guide the tailoring and evaluation of an implementation program thus contributing to the knowledge base of implementation science. The Evidence-Based Practice Attitude Scale (EBPAS) is one of few implementation instruments with strong psychometric qualities and is widely used to measure attitudes toward Evidence-Based Practice (EBP) in implementation practice and research. The Multidimensionality of the EBPAS has repeatedly been supported. Whether all of the fifteen individual items contribute to the EBPAS total scale beyond their subscales (Appeal, Requirements, Openness and Divergence) has yet to be proven. In addition, the Divergence subscale has been questioned because of low correlation with the other subscales and low inter-item correlations. Methods: The factor structure of the EBPAS was investigated in a child- and adolescent psychiatry setting (N=925, 62%, n =570) using first- and second-order Confirmatory factor analysis, thus replicating Aarons' initial studies. In addition, the present study is the first to use a bifactor model in a large and representative sample. Results: The EBPAS was supported as a multifaceted instrument. The EBPAS had a rather strong general factor supporting the use of the inventory as a single measure of attitudes. There were still four dimensions of attitude after the general factor was accounted for. All items, including the items of the Divergence factor, contributed to general attitude as well as to their specific construct. Conclusions: The present study is the first to show that it is justified to use and interpret the EBPAS as an instrument measuring global as well as specific attitudes toward EBP. Sum score and subscales scores can be used in implementation research and practice.
Keywords
EBPAS, attitudes toward EBP, Implementation, Confirmatory factor analysis, bifactor model
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A new preprint design is coming!
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This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Research article
Anna Santesson
Hallands sjukhus Halmstad
Corresponding Author
ORCiD: https://orcid.org/0000-0003-2449-612X
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 06 Jul, 2019
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Psychology
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: High-quality instruments are essential for implementation practitioners and researcher; only valid and reliable measures can confidently and consistently measure what they are intended to measure. Psychometrically sound and pragmatic measures have the potential to guide the tailoring and evaluation of an implementation program thus contributing to the knowledge base of implementation science. The Evidence-Based Practice Attitude Scale (EBPAS) is one of few implementation instruments with strong psychometric qualities and is widely used to measure attitudes toward Evidence-Based Practice (EBP) in implementation practice and research. The Multidimensionality of the EBPAS has repeatedly been supported. Whether all of the fifteen individual items contribute to the EBPAS total scale beyond their subscales (Appeal, Requirements, Openness and Divergence) has yet to be proven. In addition, the Divergence subscale has been questioned because of low correlation with the other subscales and low inter-item correlations. Methods: The factor structure of the EBPAS was investigated in a child- and adolescent psychiatry setting (N=925, 62%, n =570) using first- and second-order Confirmatory factor analysis, thus replicating Aarons' initial studies. In addition, the present study is the first to use a bifactor model in a large and representative sample. Results: The EBPAS was supported as a multifaceted instrument. The EBPAS had a rather strong general factor supporting the use of the inventory as a single measure of attitudes. There were still four dimensions of attitude after the general factor was accounted for. All items, including the items of the Divergence factor, contributed to general attitude as well as to their specific construct. Conclusions: The present study is the first to show that it is justified to use and interpret the EBPAS as an instrument measuring global as well as specific attitudes toward EBP. Sum score and subscales scores can be used in implementation research and practice.
Figure 1
Figure 2
This is a list of supplementary files associated with this preprint. Click to download.
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