Dispositional Optimism is Unidimensional or Bidimensional? the Portuguese Revised Life Orientation Test

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Jose Luis Pais-Ribeiro (Autor) FPCEUP; Luisa Pedro (Autor) Outra; Susana Marques (Autor) Outra

Revista

Título: The Spanish Journal of Psychology

Vol. 15 Nº 3

Páginas: 1259-1271

ISSN: 1138-7416

Editora: Cambridge University Press

Indexação

ISI Web of Knowledge - 1 Citação

ISI Web of Science

Scopus - 1 Citação

PsycInfo

Classificação Científica

FOS: Ciências sociais > Psicologia

Outras Informações

ID Authenticus: P-002-3N4

DOI: 10.5209/rev_sjop.2012.v15.n3.39412

Abstract (EN): The aim of the study is to adapt and then discuss the appropriateness of the Life Orientation Test as a one or two dimension scale. The research includes two studies; one is composed of a sequential sample of 280 people with multiple sclerosis, 71% female, and another includes a convenience sample of 615 individuals from the community, 51.1% female. Because the construct is built upon a theoretical assumption that has one dimension, we examine the hypothesis of one or two factor solutions through confirmatory factor analysis, and the two-dimension solution premise demonstrates better adjustment for both samples. The other psychometric properties explored show appropriate results for the Portuguese sample, and similar to the original ones; the Test therefore seems appropriate for use in cross cultural studies. Based on our results, we discuss whether the questionnaire is a one or two dimension instrument, concluding that it appears appropriate to accept the recommendations of the original authors to use it as a one-dimensional tool and, when necessary, to use both dimensions.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Notas: <a href="http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS&DestLinkType=FullRecord&KeyUT= 000312437600034">Acesso à Web of Science</a> <br> <a href="http://www.scopus.com/record/display.url?eid=2-s2.0-84871246783&origin=resultslist">Acesso à Scopus</a>

Nº de páginas: 13