A Multicountry Study on the Psychometric Properties of the Arabic Version of the Sleep Preoccupation Scale (SPS) Using Both Classical Testing Theory and Item Response Theory

Sleep distrurbances involves daytime preoccupation about sleep, which plays a critical role in perpetuating sleep disturbances. Recent cognitive models highlight the importance of daytime processes, like processing sleep-related information and interpretations during waking hours, in influencing sleep quality and quantity. The Sleep Preoccupation Scale (SPS) quantifies this daytime cognitive activity related to sleep. This study aimed to translate and validate an Arabic version of the SPS for assessing sleep preoccupation among Arabic speakers. 523 Arabic speakers (mean age 23.6 years, 75