Content Validition and Psychometric Evaluation of the Self-efficacy and Performance in Self-management Support Instrument for Physiotherapists

Anita Feleus*, Lotte Wevers, Dieuwke Schiphof, John Verhoef, Susanne van Hooft, Anne Loes van Staa

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
58 Downloads (Pure)

Abstract

Objective: 

To develop and psychometrically test the Self-Efficacy and Performance in Self-Management Support instrument for physiotherapists (SEPSS-PT), based on the SEPSS-36, the corresponding instrument for nurses. 

Design:

Instrument development including content validation and psychometric evaluation (construct validity, factor structure, and reliability). 

Setting: 

Data were collected from literature, expertmeetings, and online questionnaire 

Participants: 

Next to a comprehensive literature study, experts (self-management experts (n=2); physiotherapists (n=10); patients (n=6)) and physiotherapists and physiotherapy students (n=334), participated in different stages of the study. 

Interventions:

Not applicable. 

Main Outcome Measures: 

Not applicable. A literature study (n=42 reviews) and consultations with physiotherapists and patients identified the specific content for physiotherapy. The Five-A's model and overarching competencies of “supportive partnership attitude”, were used to structure the items. Psychometric evaluation of the draft questionnaire (40 items) was tested in a sample of 334 physiotherapists and physiotherapy students from the Netherlands, of whom 33 filled out the questionnaire twice to establish the test-retest reliability. 

Results: 

Confirmatory factor analyses revealed satisfactory fit indices for both the 6-factor model and hierarchical model, with best fit for the 6-factor model. The questionnaire discriminated between physiotherapists and physiotherapy students, and between physiotherapists who did or did not consider self-management support important. The overall internal consistency (Cronbach's alpha) was high, both for the self-efficacy and the performance items. In most of the subscales, test-retest intra-class correlation coefficients for both overall self-efficacy and performance were good, but in 3 subscales insufficient for performance. 

Conclusion: 

The SEPSS-PT questionnaire is a 40-item, Likert-scaled instrument with good content and construct validity, good internal consistency and reliability, and sufficient test-retest reliability. Future research in a larger and more diverse sample could confirm stability and discriminating power.

Original languageEnglish
Pages (from-to)49-58
Number of pages10
JournalArchives of Physical Medicine and Rehabilitation
Volume105
Issue number1
Early online date27 Jun 2023
DOIs
Publication statusPublished - Jan 2024

Bibliographical note

Funding Information:
The study was supported by a postdoctoral grant from the Dutch Taskforce for Applied Research SIA (Regieorgaan SIA) , (file number: HBOPD.2018.03.016). This study was part of Vital Delta: Medical Delta's journey toward vitality and health, funded by Taskforce for Applied Research SIA and Medical Delta . The funders played no role in the design, conduct, or reporting of this study.

Publisher Copyright:
© 2023 The Authors

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