title: The Spanish version of the prenatal breast-feeding self-efficacy scale: reliability and validity assessment.
abstract: BACKGROUND
  Only a minority of infants are exclusively breastfed for the recommended 6 months postpartum. Breast-feeding self-efficacy is a mother's confidence in her ability to breastfeed and is predictive of breastfeeding behaviors. The Prenatal Breast-feeding Self-efficacy Scale (PBSES) was developed among English-speaking mothers to measure breastfeeding self-efficacy before delivery.
  
  
  OBJECTIVE
  To translate the PBSES into Spanish and assess its psychometric properties.
  
  
  METHODS
  Reliability and validity assessment.
  
  
  METHODS
  A public hospital in Yecla, Spain.
  
  
  METHODS
  A convenience sample of 234 pregnant women in their third trimester of pregnancy.
  
  
  METHODS
  The PBSES was translated into Spanish using forward and back translation. A battery of self-administered questionnaires was completed by participants, including a questionnaire on sociodemographic variables, breastfeeding experience and intention, as well as the Spanish version of the PBSES. Also, data on exclusive breastfeeding at discharge were collected from hospital database. Dimensional structure, internal consistency and construct validity of the Spanish version of PBSES were assessed.
  
  
  RESULTS
  Confirmatory factor analysis suggested the presence of one construct, self-efficacy, with four dimensions or latent variables. Cronbach's alpha coefficient for internal consistency was 0.91. Response patterns based on decision to breastfeed during pregnancy provided evidence of construct validity. In addition, the scores of the Spanish version of the PBSES significantly predicted exclusive breastfeeding at discharge.
  
  
  CONCLUSIONS
  The Spanish version of PBSES shows evidences of reliability, and contrasting group and predictive validity. Confirmatory factor analysis indicated marginal fit and further studies are needed to provide new evidence on the structure of the scale. The Spanish version of the PBSES can be considered a reliable measure and shows validity evidences.
authors: Department of Surgery, Virgen del Castillo Hospital, Yecla, Spain.
authors: Rosa María
authors: RM
authors: Piñeiro-Albero
authors: Juan Diego
authors: JD
authors: Ramos-Pichardo
authors: Antonio
authors: A
authors: Oliver-Roig
authors: Antonio
authors: A
authors: Velandrino-Nicolás
authors: Miguel
authors: M
authors: Richart-Martínez
authors: Ricardo
authors: R
authors: García-de-León-González
authors: Kristen J
authors: KJ
authors: Wells
mesh_terms: D001942:Breast Feeding; D005260:Female; D006801:Humans; D011247:Pregnancy; D020377:Self Efficacy; D013030:Spain
keywords: Breastfeeding; Psychometrics; Self-efficacy; Translating