The psychometric properties of the revised Breast-Feeding Attrition Prediction Tool, based on the Theory of Planned Behavior, were examined in this study. The sample consisted of 201 postpartum women who planned to breast-feed at least 8 weeks. Four scales identified by factor analysis measured the three TPB constructs. All scales showed moderate internal consistency (alphas .79 to .85). Two scales distinguished between women with and without prior breast-feeding experience (p