Validity and Reliability of the Turkish Version of the Self-Efficacy Regarding Vaginal Birth Scale: A Methodological Study

Aim: The aim of the study was to test validity and reliability of the Self-efficacy Regarding Vaginal Birth Scale in Turkish. Material and Methods: The methodological study was conducted in a university hospital with 165 pregnant women. The data were collected using "Personal Information Form", "Self-Efficacy Regarding Vaginal Birth Scale and "Childbirth Self-Efficacy Inventory - Short Form". Language validity, content validity, confirmatory factor analyse and criterion-dependence validity and were performed to test the validity of the scale. The scale’s reliability was assessed using the item-total correlation, Cronbach’s alpha, split-half test method and test-retest analysis. Results: The scale content validity index was found above 0.80. In the confirmatory factor analysis, all the goodness of fit indexes had acceptable values. Item-total correlations ranged between 0.167 and 0.809 for each item and were positively correlated with the scale total. In line with the recommendations of experts, no items were removed from the scale. It was determined that the scale was collected under one factor as 9 items. The correlation between the two halves of the scale is 0.76, the Spearman-Brown coefficient is 0.86, and the Gutmann Split-Half coefficient is 0.85. The Cronbach’s alpha coefficient calculated for the overall scale was 0.87. The total correlation of the items and the test-retest correlation showed high reliability with 0.924 (p