Psychometric Properties of the Iowa Infant Feeding Attitude Scale among a Multiethnic Population during Pregnancy

Background:The Iowa Infant Feeding Attitude Scale (IIFAS) was developed to measure maternal attitudes toward infant feeding, but a number of validated studies on the IIFAS found that it was subject to methodological limitations.Objective:The purpose of this study was to evaluate the psychometric properties of the IIFAS among a multiethnic population in Singapore.Methods:A cross-sectional research design was used on a sample of 417 antenatal women. The internal consistency and stability of the IIFAS were evaluated using Cronbach’s α and test–retest reliability. Known-group comparisons discriminated certain group differences in a predictable way. A series of exploratory factor analyses (EFAs) was conducted to test the factor structure of the IIFAS using the maximum likelihood and principal axis factoring. The number of factors was selected according to theoretical and statistical considerations. A confirmatory factor analysis (CFA) was further performed to validate the factor structure constructed in the pr...