Measuring Self-Efficacy to Deal With Infertility: Psychometric Properties and Confirmatory Factor Analysis of the Portuguese Version of the Infertility Self-Efficacy Scale

• Main Author: Galhardo, Ana
• Publication Date: 2013
• Other Authors: Cunha, Marina, Pinto-Gouveia, José
• Format: Article
• Language: eng
• Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
• Download full: http://repositorio.ismt.pt/handle/123456789/753
• topic: Infertilidade - Infertility; Auto-eficácia - Self-efficacy; Propriedades psicométricas - Psychometric properties; Análise de factores confirmatória - Confirmatory factor analysis

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.