Design and Validity of an Instrument to Assess Healthcare Professionals' Perceptions, Behaviour, Self-efficacy and Attitudes Towards Evidence-based Health Practice: I-SABE

Overview

Journal BMJ Open

Specialty General Medicine

Date 2022 Apr 9

PMID 35396280

Authors

Arielly Souza Mariano Ruano

Fabiane Raquel Motter

Luciane Cruz Lopes

Affiliations

Soon will be listed here.

Abstract

Objectives: To develop and validate an instrument to measure Brazilian healthcare professionals' perceptions, behaviour, self-efficacy and attitudes towards evidence-based health practice.

Design: Validation of an instrument using the Delphi method to ensure content validity and data from a cross-sectional survey to evaluate psychometric characteristics (psychometric sensitivity, factorial validity and reliability).

Setting: National Register of Health Establishments database.

Participants: We included clinical health professionals who were working in the Brazilian public health system.

Results: The Instrument to assess Evidence-Based Health (I-SABE) was constructed with five domains: self-efficacy; behaviour; attitude; results/benefits and knowledge/skills. Content validity was done by 10-12 experts (three rounds). We applied I-SABE to 217 health professionals. Bartlett's sphericity test and the Kaiser-Meyer-Olkin (KMO) index were adequate (χ=1455.810, p<0.001; KMO=0.847). Considering the factorial loads of the items and the convergence between the Scree Plot and the Kaiser criterion the four domains tested in this analysis, explaining 59.2% of the total variance. The internal consistency varied between the domains: self-efficacy (α=0.76), behaviour (α=0.30), attitudes (α=0.644), results/benefits to the patient (α=0.835).

Conclusions: The results of the psychometric analysis of the I-SABE confirm the good quality of this tool. The I-SABE can be used both in educational activities as well as an assessment tool among healthcare professionals in the Brazilian public health settings.

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