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Exercise Self-Efficacy Scale - Schizophrenia Version: Utveckling och psykometrisk prövning av en diagnosspecifik skattningsskala
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences.
2013 (Swedish)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [sv]

Bakgrund: Self-efficacy, en persons tilltro till sin förmåga, är en faktor som påverkar hälsobeteenden såsom fysisk aktivitet. Exercise Self-Efficacy Scale mäter denna egenskap genom självskattning, men har inte utvärderats för personer med schizofreni.

Syfte: Att omarbeta Exercise Self-Efficacy Scale för personer med schizofreni.

Metod: Deskriptiv design med psykometrisk prövning av den omarbetade Exercise Self-Efficacy Scale. Första delen av studien bestod av fokusgrupper med patienter och personal på en psykiatrisk öppenvårdsmottagning för patienter med psykossjukdom. Utifrån resultatet av dessa utvecklades Exercise Self-Efficacy Scale – Schizophrenia Version. I den andra delen av studien fyllde 32 patienter med schizofreni eller schizoaffektivt syndrom i den omarbetade skalan vid två tillfällen med två veckors mellanrum. Beräkningar gjordes av inre överensstämmelse, test-retest reliabilitet och korrelation med självrapporterad fysisk aktivitet.

Resultat: Fokusgrupperna gav rik information om faktorer såsom upplevda hinder för fysisk aktivitet och passande utformning av den nya skattningsskalan. Exercise Self-Efficacy Scale – Schizophrenia Version hade en mycket hög inre överensstämmelse (Cronbach's Alpha = 0,961) och test-retest reliabilitet (ICC = 0,951, p < 0,001). Skattad self-efficacy hade ett samband med självrapporterad fysisk aktivitet (Spearman's rho = 0,531, p < 0,01).

Slutsats: Exercise Self-Efficacy Scale – Schizophrenia Version har hög reliabilitet och kan användas för självskattning av self-efficacy för fysisk aktivitet bland personer med schizofreni. Instrumentet kan vidareutvecklas genom att identifiera eventuellt överflödiga delfrågor.

Abstract [en]

Background: Self-efficacy is a factor that influences health behaviours such as physical activity. Exercise Self-Efficacy Scale is a self-rating scale designed to measure self-efficacy beliefs, but has not been evaluated for people with schizophrenia.

Aim: To revise Exercise Self-Efficacy Scale for people with schizophrenia.

Method: Descriptive design with psychometric evaluation of the revised Exercise Self-Efficacy Scale. The first part of the study included focus groups with patients and staff members at a psychiatric outpatient clinic for patients with psychosis. Based on the results of those, Exercise Self-Efficacy Scale – Schizophrenia Version was developed. In the second part of the study, 32 patients with schizophrenia or schizoaffective disorder completed the revised scale on two occasions separated by a two week interval. Internal consistency, test-retest reliability and correlation with self-reported physical activity were examined.

Result: The focus groups gave rich information on factors such as perceived barriers to physical activity and suitable tailoring of the new rating scale. Exercise Self-Efficacy Scale – Schizophrenia Version showed a very high internal consistency (Cronbach's Alpha = 0,961) and test-retest reliability (ICC = 0,951, p < 0,001). Rated self-efficacy showed a correlation with self-reported physical activity (Spearman's rho = 0,531, p < 0,01).

Conclusion: Exercise Self-Efficacy Scale – Schizophrenia Version has a high reliability and can be used for self-rating of exercise self-efficacy among people with schizophrenia. The instrument can be further developed by identifying potentially redundant items.

Place, publisher, year, edition, pages
2013. , 75 p.
Keyword [en]
schizophrenia, physical activity, self-efficacy, assessment, psychometrics
Keyword [sv]
schizofreni, fysisk aktivitet, self-efficacy, utvärdering, psykometri
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
URN: urn:nbn:se:uu:diva-213412OAI: oai:DiVA.org:uu-213412DiVA: diva2:681999
Subject / course
Public Health
Educational program
Master Programme in Public Health
Supervisors
Examiners
Available from: 2013-12-20 Created: 2013-12-20 Last updated: 2013-12-20Bibliographically approved

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