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Psychometric Properties of the CASP-12 Scale in Portugal: An Analysis Using SHARE Data

2020Journal article Open access
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dc.contributor.authorRodríguez-Blázquez, Carmen
dc.contributor.authorRibeiro, Oscar
dc.contributor.authorAyala, Alba
dc.contributor.authorTeixeira, Laetitia
dc.contributor.authorAraújo, Lia
dc.contributor.authorForjaz, Maria João
dc.date.accessioned2020-09-17T08:50:11Z
dc.date.available2020-09-17T08:50:11Z
dc.date.issued2020
dc.description.abstractThe purpose of this study is to assess the psychometric properties of the Portuguese version of the Control, Autonomy, Self-realization, and Pleasure (CASP)-12 scale used in the Survey of Health, Aging and Retirement in Europe (SHARE) project. Data were obtained from a representative sample of 1666 people aged ≥50 years living in Portugal and participating in the SHARE wave 6. In addition to the CASP-12 scale, sociodemographic data and health status, activity limitation (GALI), depression (Euro-D) and satisfaction with life scores were collected. Data quality and acceptability, construct and structural validity and internal consistency of the CASP-12 scale were analyzed. A Rasch analysis was also performed. CASP-12 total score (mean: 33.3; standard deviation: 5.8, range: 12–48) correlated with Euro-D (−0.57) and with life satisfaction (0.52). Mean scores were significantly lower for women, people aged ≥75 years and those with activity limitations and worse health status (p < 0.001). The confirmatory factor analysis showed good fit to the 4-factor model (root mean squared error of approximation (RMSEA): 0.07; comparative fit index (CFI): 0.90, χ2 (48) = 444.59, p < 0.001), which was confirmed by Rasch analysis (χ2 (36) = 10.089, p = 0.745, person separation index (PSI) = 0.722 for the 4-factor model). For domains, person separation index ranged 0.31–0.79 and Cronbach’s alpha, 0.37–0.73. In conclusion, the Portuguese version of the CASP-12 scale presents some inadequacies in acceptability, internal consistency and structural validity.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/ijerph17186610pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.19/6374
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectquality of lifept_PT
dc.subjectCASP-12pt_PT
dc.subjectRasch modelpt_PT
dc.subjectolder adultspt_PT
dc.subjectPortugalpt_PT
dc.titlePsychometric Properties of the CASP-12 Scale in Portugal: An Analysis Using SHARE Datapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue18pt_PT
oaire.citation.startPage6610pt_PT
oaire.citation.titleInternational Journal of Environmental Research and Public Healthpt_PT
oaire.citation.volume17pt_PT
person.familyNameAraújo
person.givenNameLia
person.identifier.ciencia-idF815-5880-A50A
person.identifier.orcid0000-0001-8212-9235
person.identifier.scopus-author-id55292773700
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationb80249c1-0b65-4dc5-aa3d-002455aec9d9
relation.isAuthorOfPublication.latestForDiscoveryb80249c1-0b65-4dc5-aa3d-002455aec9d9

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