Psychometric Properties of the Turkish Validity and Reliability of the Parent Diabetes Distress Scale

Abstract

Objective: The aim of this study was to evaluate the validity and reliability of the Turkish translation of the Parent Diabetes Distress Scale (PDDS). Methods: The PDDS is a 5-point Likert-type scale with 20 items. After obtaining permission from the scale developers, the study commenced. First, a systematic adaptation of the scale into the Turkish language was performed including translation, expert panel review, back translation, and pilot study. Test-retest was applied to 35 participants. After these procedures, data collection was undertaken using the adapted PDDS and a demographic data collection form. The collected data were analyzed for reliability, including stability of the scale with test-retest and internal consistency of the scale (Cronbach’s α), and validity including construct validity of the scale with confirmatory factor analysis (CFA). Results: The parents of 210 teenagers, aged >11 and <18 years, who had been diagnosed with type 1 diabetes mellitus for at least one year were included. Of these parents, 71.9% (n=151) were mothers and 53.3% (n=112) of the children were girls. The Cronbach’s α value was 0.906. The results of the CFA were χ2/df=4.406, p<0.001, comparative fit test 0.704, and goodness of fit tests 0.749. Themean total PDDS score was 2.2±0.7. These results indicate that scores of 1.6 points or less was evaluated as “little or no distress” 1.7-2.4 as “moderate distress,” and >2.4 points as “high distress”. This showed that the majority of the parents in the study experienced moderate or severe diabetes-related distress. Conclusion: The Turkish version of the PDDS fulfilled the validity and reliability tests at an acceptable level.