. Ali Nouri; . Fattaneh Esmaeili; . Heliya Seyedi; . Sahba Rezaeian; . Sareh Panjeh; . Hugo Cogo‑Moreira; . Sabine Pompeia
Volume 11, Issue 8 , September 2021, , Pages 1-9
Abstract
BACKGROUND: The Pediatric Daytime Sleepiness Scale (PDSS) and the Morningness–EveningnessScale for Children (MESC) are widely used to measure two important facets of sleep patterns, ...
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BACKGROUND: The Pediatric Daytime Sleepiness Scale (PDSS) and the Morningness–EveningnessScale for Children (MESC) are widely used to measure two important facets of sleep patterns, butneither have been adapted and validated for use in Iran. The purpose of this study was to examinethe psychometric properties and factor structure of the Persian versions of the PDSS and the MESCin a sample of Iranian adolescents.MATERIALS AND METHODS: The Persian versions of PDSS and MESC were translated andadministered to a representative sample (n = 407) of Iranian early adolescents, aged 9–15 years,who attended school in morning shifts. The factor structure of both scales, found in prior studies,was tested using Confirmatory Factor Analyses to assess their validity and reliability.RESULTS: The results revealed that the model fit indices of the one factor solution of the PDSSand the two factor solution of the MESC were acceptable to good. A high Pearson correlation wasfound between raw and latent factor scores for the PDSS and the two factors derived from theMESC (i.e., Morningness and Planning). Furthermore, the higher the PDSS score (more daytimesleepiness), the lower the MESC scores (more eveningness), indicating criterion validity of the scalesshowing the expected increase in daytime sleepiness in evening oriented adolescents who wakeup early for attending school.CONCLUSION: The Persian versions of the PDSS and the MESC can be considered reliable andvalid tools for evaluating, respectively, daytime sleepiness and morningness‑eveningness in theadolescent population of Iran.
