%0 Journal Article %T Validation of the Arabic Version of the Epworth Sleepiness Scale among the Yemeni Medical Students %A Al-Ammar %A Fawziah Kassim %A Attal %A Bothaina Ahemd %A Bezdan %A Mohammed %J - %D 2020 %R https://doi.org/10.1155/2020/6760505 %X The study was conducted with the aim to assess the psychometric measures of an adapted Arabic version of the Epworth Sleepiness Scale (ESS) among medical students at Sana¡¯a University, Yemen. The cross-sectional study targeted 360 students (males: 176; females: 184) from the preclinical 3rd year ( : 197) and the final clinical year ( : 163). Participants self-filled an Arabic and slightly modified version of the 8-item Epworth Sleepiness Scale. Exploratory Principal Component Analysis (PCA) and Confirmatory Factor Analyses (CFA) were conducted on two equal subsets of the sample ( : 180 each). The PCA yielded a two-dimension model subsequently confirmed by factor analysis. The first dimension was grouped on three items while the second dimension had five items reflecting the respondents¡¯ propensity to sleep during ¡°interactive situations¡± and ¡°sitting and lying,¡± respectively. The model had an acceptable goodness of fit measures for the overall ESS ( , , ) and acceptable reliability indicators (factor 1 , factor 2 ). However, due to weak variance explanation (0.07) of item 6 (sitting and talking) in factor 1, analysis was repeated excluding this item. The 7-item model was also two-dimensional, valid, and reliable. The reliability indicators were acceptable with for factor 1 (4 items of interactive situations) and 0.62 for factor 2 (3 items of sitting) and overall . Overall, the ESS is a useful tool. Factor analysis produced a two-factor model of 7 items with good validity and reasonable reliability that can be used in diagnosing daytime sleepiness among young Yemeni adults %U https://www.hindawi.com/journals/sd/2020/6760505/