Investigation of the Turkish Psychometric Properties of Bedtime Procrastination and While-in-Bed Procrastination Scales for Adolescents

Bedtime procrastination and while-in-bed procrastination is one of the important problems frequently encountered in adolescents. This study was carried out to examine the psychometric properties of the Turkish version of the Bedtime Procrastination and While-in-Bed Procrastination Scales for adolescents. This methodological study was conducted with 348 adolescents aged 12-18 between March and April 2023. Cronbach's alpha and omega coefficients were employed to test the psychometric properties, split-half and item-total correlation methods to test the reliability, and confirmatory factor analysis to test the construct validity of the scales. It was determined that the Bedtime Procrastination scale Cronbach's alpha and omega coefficients of this scale were 0.93. The While-in-Bed Procrastination Scale Cronbach's alpha value of this scale was 0.86, and the omega coefficient was 0.84. As a result of the confirmatory factor analysis, it was found that the fit indices of both scales were greater than 0.90 and that the RMSEA was less than 0.08. The Bedtime Procrastination and While-in-Bed Procrastination Scales for adolescents, whose Turkish psychometric properties were examined in this study, are valid and reliable measurement tools. These scales can be used to evaluate whether adolescents procrastinate going to bed and sleeping while in bed and what activities they are engaged in before going to sleep, to reduce inadequate sleep habits, and to develop sleep-focused education programs.