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Research article
Factorial structure and short version of the Modified Fresno Test to assess the use of evidence-based practice in physiotherapists.
Anderson Martins da Silva
Universidade Cidade de Sao Paulo
Corresponding Author
ORCiD: https://orcid.org/0000-0002-8790-8032
License:
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Background: The Modified Fresno Test is an adapted version for physiotherapists. So far, none of the versions of the Fresno Test were subjected to analysis of the factorial structure. Objective of the study was describe the exploratory and confirmatory factorial structure of the Modified Fresno Test adapted to the Portuguese-Brazilian and analyze the statistic feasibility for the elaboration of a short version. Methods: The questionnaire was applied in 57 physiotherapists, being 36 professionals (13 of these also professors) and 21 students of the last semester of the physiotherapy course. Exploratory Factor Analysis was performed by the method of principal components. The confirmatory factor analysis was performed by the method of maximum likelihood. The score of the answers in the test and retest was evaluated, totaling 228 observations. Reliability was assessed by means of internal consistency, using Cronbach's alpha coefficient. Results: The internal consistency indicated value of 0.81 for the questions of the instrument. The Kaiser-Meyer-Olkin test presented acceptable values (KMO=0.80). The Bartlett’s sphericity test indicated that the correlations were sufficient for the analysis. The analysis revealed the presence of 3 factors (eigenvalues > 1), which explains 60.9% of total variance of the instrument. In the confirmatory factor analysis, the second model which tested a three-factor structure provided a better fit to the data. Conclusion: The analysis showed good factorial validity and adequate internal consistency for the use of the instrument consisting of 13 questions and 3 factors. This model proved to be better than the original model. The short version consisting of 9 questions may be an appropriate alternative for use in the population of interest.
Keywords
Fresno test, Factorial analysis, evidence-based practice, Physiotherapy
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Received 24 Jan, 2020
Reviewer #1 agreed
On 10 Jan, 2020
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This preprint is under consideration at BMC Medical Education. A preprint is 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.
Learn more about In Review
Research article
Factorial structure and short version of the Modified Fresno Test to assess the use of evidence-based practice in physiotherapists.
Anderson Martins da Silva
Universidade Cidade de Sao Paulo
Corresponding Author
ORCiD: https://orcid.org/0000-0002-8790-8032
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Revision
Version 1
Posted 03 Jan, 2020
No community comments so far
Reviewer #3 agreed
On 03 Apr, 2020
Review #2 received
Received 03 Apr, 2020
Editorial decision: Major revision
On 03 Apr, 2020
Reviewer #2 agreed
On 01 Mar, 2020
Review #1 received
Received 24 Jan, 2020
Reviewer #1 agreed
On 10 Jan, 2020
Editor assigned
On 02 Jan, 2020
Reviewers invited
Invitations sent on 02 Jan, 2020
Submission checks complete
On 31 Dec, 2019
Editor invited
On 30 Dec, 2019
First submitted
On 19 Dec, 2019
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: The Modified Fresno Test is an adapted version for physiotherapists. So far, none of the versions of the Fresno Test were subjected to analysis of the factorial structure. Objective of the study was describe the exploratory and confirmatory factorial structure of the Modified Fresno Test adapted to the Portuguese-Brazilian and analyze the statistic feasibility for the elaboration of a short version. Methods: The questionnaire was applied in 57 physiotherapists, being 36 professionals (13 of these also professors) and 21 students of the last semester of the physiotherapy course. Exploratory Factor Analysis was performed by the method of principal components. The confirmatory factor analysis was performed by the method of maximum likelihood. The score of the answers in the test and retest was evaluated, totaling 228 observations. Reliability was assessed by means of internal consistency, using Cronbach's alpha coefficient. Results: The internal consistency indicated value of 0.81 for the questions of the instrument. The Kaiser-Meyer-Olkin test presented acceptable values (KMO=0.80). The Bartlett’s sphericity test indicated that the correlations were sufficient for the analysis. The analysis revealed the presence of 3 factors (eigenvalues > 1), which explains 60.9% of total variance of the instrument. In the confirmatory factor analysis, the second model which tested a three-factor structure provided a better fit to the data. Conclusion: The analysis showed good factorial validity and adequate internal consistency for the use of the instrument consisting of 13 questions and 3 factors. This model proved to be better than the original model. The short version consisting of 9 questions may be an appropriate alternative for use in the population of interest.
Figure 1
Figure 2