Before revision: Children's Sleep Habits Questionnaire Sleep study in psychology Sleep studies have been imperative for the empirical research of sleep psychology.
After revision: Cleveland Adolescent Sleepiness Questionnaire (CASQ): There are 16 items to measure extreme sleepiness during the day in adolescents aged 11–17 years URLChildren's Sleep Habits Questionnaire Sleep study in psychology Sleep studies have been imperative for the empirical research of sleep psychology.