Measuring self-efficacy to deal with infertility: Psychometric properties and confirmatory factor analysis of the portuguese version of the infertility self-efficacy scale

Authors

  • Ana Galhardo,

    Corresponding author
    1. Instituto Superior Miguel Torga, Largo da Cruz de Celas, n°1, 3000-132 Coimbra, Portugal
    2. CINEICC, Faculdade de Psicologia e de Ciências da Educação da Universidade de Coimbra, Rua do Colégio Novo, Apartado 6153, 3001-802 Coimbra, Portugal
    • Instituto Superior Miguel Torga, Largo da Cruz de Celas, n°1, 3000-132 Coimbra, Portugal.
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  • Marina Cunha,

    1. Instituto Superior Miguel Torga, Largo da Cruz de Celas, n°1, 3000-132 Coimbra, Portugal
    2. CINEICC, Faculdade de Psicologia e de Ciências da Educação da Universidade de Coimbra, Rua do Colégio Novo, Apartado 6153, 3001-802 Coimbra, Portugal
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  • José Pinto-Gouveia

    1. CINEICC, Faculdade de Psicologia e de Ciências da Educação da Universidade de Coimbra, Rua do Colégio Novo, Apartado 6153, 3001-802 Coimbra, Portugal
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  • This research was supported by the first author Ph.D. Grant (SFRH/BD/68392/2010), sponsored by FCT (Portuguese Foundation for Science and Technology). The authors extend their deepest thanks to all the couples who voluntarily participated in this study. The authors also wish to thank the infertility-related public services and private clinics that collaborated in data collection and to the Portuguese Fertility Association for the support provided.

Abstract

This study explores the psychometric properties and factor structure of the Portuguese version of the Infertility Self-Efficacy Scale (ISE-P), using translation and back-translation of the original version; principal component analysis; confirmatory factor analysis (CFA); and internal consistency, and test–retest reliability analyses. A total of 287 participants (156 women and 131 men) seeking medical treatment were recruited from public and private fertility centers. CFA revealed that the single-component model fit the data well. The instrument showed excellent internal consistency, good test–retest reliability, and correlations with other mental health measures suggesting good convergent and discriminant validity. In conclusion, The ISE-P is a valid and reliable Portuguese-language measure of perceived self-efficacy to cope with infertility. © 2012 Wiley Periodicals, Inc. Res Nurs Health 36:65–74, 2013

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