Introduction: Breastfeeding myths are culturally ingrained misconceptions related to breastfeeding and adversely affect the breastfeeding process. The objective of this study is to develop the Breastfeeding Myths Scale. Methods: This methodological study was conducted with a total of 413 participants. In the first phase, exploratory factor analysis was employed, followed by confirmatory factor analysis in the second phase. Furthermore, a test-retest was conducted to assess the reliability of the scale scores. Results: As a result of psychometric analyses, the single-dimensional 30-item Breastfeeding Myths Scale was deemed a valid and reliable instrument. The Cronbach's alpha value of the scale was established at 0.91, and the test-retest reliability at 0.90. According to the results of the receiver operating characteristic analysis, the optimal cutoff point was determined to be 119.50, with a sensitivity of 86% and a specificity of 53%. Conclusions: Breastfeeding Myths Scale was deemed significant for identifying the prevalence of breastfeeding myths. Utilization of the Breastfeeding Myths Scale is recommended for future research endeavors and individual clinical assessments.
Keywords: breastfeeding; myth; scale.