Reliability and Validity of the Alberta Context Tool (ACT) with Professional Nurses: Findings from a Multi-Study Analysis

Although organizational context is central to evidence-based practice, underdeveloped measurement hinders its assessment. The Alberta Context Tool, comprised of 59 items that tap 10 modifiable contextual concepts, was developed to address this gap. The purpose of this study to examine the reliabilit...

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Bibliographic Details
Published in:PloS one 2015-06, Vol.10 (6), p.e0127405-e0127405
Main Authors: Squires, Janet E, Hayduk, Leslie, Hutchinson, Alison M, Mallick, Ranjeeta, Norton, Peter G, Cummings, Greta G, Estabrooks, Carole A
Format: Article
Language:English
Subjects:
Adult
Aged
Corporate culture
Data Interpretation, Statistical
Evidence-based nursing
Evidence-Based Practice - methods
Female
Health care
Health services
Humans
Long term health care
Male
Managers
Medical personnel
Medical research
Middle Aged
Nurses
Nursing schools
Organizational aspects
Pediatrics
Principal components analysis
Professionals
Psychometrics - methods
Quantitative psychology
Reliability analysis
Studies
Surveys and Questionnaires
Validity
Young Adult
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Summary:Although organizational context is central to evidence-based practice, underdeveloped measurement hinders its assessment. The Alberta Context Tool, comprised of 59 items that tap 10 modifiable contextual concepts, was developed to address this gap. The purpose of this study to examine the reliability and validity of scores obtained when the Alberta Context Tool is completed by professional nurses across different healthcare settings. Five separate studies (N = 2361 nurses across different care settings) comprised the study sample. Reliability and validity were assessed. Cronbach's alpha exceeded 0.70 for 9/10 Alberta Context Tool concepts. Item-total correlations exceeded acceptable standards for 56/59 items. Confirmatory Factor Analyses coordinated acceptably with the Alberta Context Tool's proposed latent structure. The mean values for each Alberta Context Tool concept increased from low to high levels of research utilization(as hypothesized) further supporting its validity. This study provides robust evidence for reliability and validity of scores obtained with the Alberta Context Tool when administered to professional nurses.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0127405