Adaptation and psychometric evaluation of the breastfeeding self-efficacy scale to assess exclusive breastfeeding.
Adolescent
Adult
Breast Feeding
/ psychology
Cohort Studies
Factor Analysis, Statistical
Female
Humans
Postpartum Period
/ psychology
Pregnancy
Psychiatric Status Rating Scales
/ standards
Psychometrics
Reproducibility of Results
Self Efficacy
Surveys and Questionnaires
/ standards
Translations
Uganda
Young Adult
Exclusive breastfeeding; human milk
Psychometric evaluation
Reliability
Scale development
Self-efficacy
Validity
Journal
BMC pregnancy and childbirth
ISSN: 1471-2393
Titre abrégé: BMC Pregnancy Childbirth
Pays: England
ID NLM: 100967799
Informations de publication
Date de publication:
18 Feb 2019
18 Feb 2019
Historique:
received:
11
07
2018
accepted:
05
02
2019
entrez:
20
2
2019
pubmed:
20
2
2019
medline:
20
6
2019
Statut:
epublish
Résumé
Increasing the prevalence of optimal breastfeeding practices, including exclusive breastfeeding for 6 months, could prevent an estimated 823,000 child deaths annually. Self-efficacy is an important determinant of breastfeeding behaviors. However, existing measures do not specifically assess exclusive breastfeeding self-efficacy, but rather self-efficacy for any breastfeeding. Hence, we sought to adapt and validate an instrument to measure exclusive breastfeeding self-efficacy. We modified and added items from Dennis' Breastfeeding Self-Efficacy Scale-Short Form (BSES-SF). It was then implemented in an observational cohort in Gulu, Uganda at 1 (n = 239) and 3 (n = 238) months postpartum ( clinicaltrials.gov NCT02925429). We performed inter-item and adjusted item-test correlations, as well as exploratory factor analysis and parallel analysis at 1 month postpartum to remove redundant items and determine their latent factor structure. We further applied confirmatory factor analysis to test dimensionality of the scale at 3 months postpartum. We then assessed the reliability of the scale and conducted tests of predictive and discriminant validity. Known group comparisons were made by primiparous status and correct breastfeeding knowledge. The modification of the original BSES-SF to target exclusive breastfeeding produced 19 items, which were reduced to 9 based on item correlations and factor loadings. Two dimensions of the adapted scale, the Breastfeeding Self-Efficacy Scale to Measure Exclusive Breastfeeding BSES-EBF emerged: Cognitive and Functional subscales, with alpha coefficients of 0.85 and 0.79 at 3 months postpartum. Predictive and discriminant validity and known group comparisons assessments supported its validity. This version of the Breastfeeding Self-Efficacy scale, the BSES-EBF Scale, is valid and reliable for measuring exclusive breastfeeding self-efficacy in northern Uganda, and ready for adaptation and validation for clinical and programmatic use elsewhere.
Sections du résumé
BACKGROUND
BACKGROUND
Increasing the prevalence of optimal breastfeeding practices, including exclusive breastfeeding for 6 months, could prevent an estimated 823,000 child deaths annually. Self-efficacy is an important determinant of breastfeeding behaviors. However, existing measures do not specifically assess exclusive breastfeeding self-efficacy, but rather self-efficacy for any breastfeeding. Hence, we sought to adapt and validate an instrument to measure exclusive breastfeeding self-efficacy.
METHODS
METHODS
We modified and added items from Dennis' Breastfeeding Self-Efficacy Scale-Short Form (BSES-SF). It was then implemented in an observational cohort in Gulu, Uganda at 1 (n = 239) and 3 (n = 238) months postpartum ( clinicaltrials.gov NCT02925429). We performed inter-item and adjusted item-test correlations, as well as exploratory factor analysis and parallel analysis at 1 month postpartum to remove redundant items and determine their latent factor structure. We further applied confirmatory factor analysis to test dimensionality of the scale at 3 months postpartum. We then assessed the reliability of the scale and conducted tests of predictive and discriminant validity. Known group comparisons were made by primiparous status and correct breastfeeding knowledge.
RESULTS
RESULTS
The modification of the original BSES-SF to target exclusive breastfeeding produced 19 items, which were reduced to 9 based on item correlations and factor loadings. Two dimensions of the adapted scale, the Breastfeeding Self-Efficacy Scale to Measure Exclusive Breastfeeding BSES-EBF emerged: Cognitive and Functional subscales, with alpha coefficients of 0.85 and 0.79 at 3 months postpartum. Predictive and discriminant validity and known group comparisons assessments supported its validity.
CONCLUSIONS
CONCLUSIONS
This version of the Breastfeeding Self-Efficacy scale, the BSES-EBF Scale, is valid and reliable for measuring exclusive breastfeeding self-efficacy in northern Uganda, and ready for adaptation and validation for clinical and programmatic use elsewhere.
Identifiants
pubmed: 30777020
doi: 10.1186/s12884-019-2217-7
pii: 10.1186/s12884-019-2217-7
pmc: PMC6380059
doi:
Banques de données
ClinicalTrials.gov
['NCT02925429']
Types de publication
Journal Article
Validation Study
Langues
eng
Sous-ensembles de citation
IM
Pagination
73Subventions
Organisme : NIDDK NIH HHS
ID : P30 DK056350
Pays : United States
Organisme : NIMH NIH HHS
ID : K01 MH098902
Pays : United States
Organisme : NICHD NIH HHS
ID : P2C HD050924
Pays : United States
Organisme : United States Agency for International Development
ID : USAID OAA-L-10-00006
Organisme : NIMH NIH HHS
ID : K01MH098902
Pays : United States
Organisme : NIMH NIH HHS
ID : K23 MH116807
Pays : United States
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