Introduction The purpose of this study was to assess the validity and reliability of the Persian version of the Cleveland Adolescent Sleepiness Questionnaire (CASQ) in Iranian adolescents. Methods The CASQ consists of 16 items measuring extreme sleepiness during the day in adolescents aged 11–17 years old. The questionnaire includes two dimensions: Sleepiness Statements and Alertness Statements. This study was a descriptive cross-sectional study. The original English text of CASQ was translated into Persian using backward-forward translation. Then, 310 secondary school adolescents aged 11–17 years old completed that in Kashan. The internal validity of the questionnaire was determined two times at an interval of two weeks using Cronbach's alpha coefficient. The concurrent validity was determined using Spearman correlation coefficient. Factor analysis was used by performing principle component analysis for assessing construct validity. Results 199 (47.1%) of the adolescents participated in this study, were male and 111 (52.9%) were female. Mean and standard deviation of the age of adolescents were 14.31 ± 0.9. The Cronbach's alpha coefficient for the entire CASQ was the satisfactory value of 0.8. The intra-class correlation coefficient (ICC coefficient) of the tool was 0.78, which confirmed the repeatability of this test. Spearman’s correlation coefficient between CASQ and Epworth sleepiness scale (ESS) was equal to 0.21, and the correlation coefficient between CASQ and Pittsburg Sleep Quality Index (PSQI) was 0.25. Both were significant at P < 0.05 level. Conclusions Based on the present study findings, we concluded that the Persian version of CASQ has an appropriate validity and reliability for assessing the sleepiness of adolescents in the Persian language community.

中文翻译：

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克利夫兰青少年嗜睡问卷 (CASQ)：波斯语版本的翻译和验证研究

介绍 本研究的目的是评估波斯版克利夫兰青少年嗜睡问卷 (CASQ) 在伊朗青少年中的有效性和可靠性。方法 CASQ 包含 16 个测量 11-17 岁青少年白天极度嗜睡的项目。问卷包括两个维度：嗜睡陈述和警觉陈述。本研究为描述性横断面研究。CASQ 的英文原文采用后向翻译法翻译成波斯语。然后，310 名 11-17 岁的中学青少年在卡尚完成了这项工作。问卷的内部效度使用 Cronbach 的 alpha 系数以两周的间隔确定两次。使用斯皮尔曼相关系数确定同时效度。通过进行主成分分析来使用因子分析来评估构念效度。结果 参与本研究的青少年 199 人（47.1%），男性，111 人（52.9%）女性。青少年年龄的平均值和标准偏差为 14.31 ± 0.9。整个 CASQ 的 Cronbach α 系数是令人满意的 0.8。该工具的类内相关系数（ICC系数）为0.78，证实了本次测试的可重复性。Spearman CASQ与Epworth嗜睡量表（ESS）的相关系数为0.21，CASQ与匹兹堡睡眠质量指数（PSQI）的相关系数为0.25。两者均在 P < 0.05 水平上显着。结论 根据目前的研究结果，