Development and psychometric evaluation of the Ketogenic Diet Management Scale for Children with Epilepsy-Parent Form

Abstract

ABSTRACT This study was conducted to develop a measurement tool to achieve ketogenic diet management in parents of children with epilepsy and examine its Turkish psychometric properties. The study was conducted on 317 parents using a descriptive correlational method. Data analysis and evaluation were performed using factor analysis, Cronbach’s alpha, and item – total score correlation. The scale consists of 20 items and unidimensional factor. As a result of the exploratory factor analysis, the total explained variance of the unidimensional factor was 63.809%. Cronbach’s alpha coefficient of the scale was 0.971. The four-weeks test-retest reliability evaluated with intra-class correlation was 0.87. Confirmatory factor analysis indicated, the model fit index results were recorded as follows: 0.95 as the Goodness-of-Fit Index; comparative fit index, 0.96 and normed fit index, 0.94. The study determined that the Ketogenic Diet Management Scale for Children with Epilepsy-Parent Form is a measurement tool that can be used by health professionals and that is used to evaluate parents’ ketogenic diet knowledge.