Validity and reliability of an Arabic version of the Sleep Hygiene Index

• DOI: 10.1016/j.sleep.2021.01.040
• Publication Date: 2021-02-05T20:05:47Z
• Authors: Jad Costa; Samar Helou; Ghassan Sleilaty; Tarek Costa; Jeanine El Helou
• Keywords: Exploratory factor analysis; Validity; Content Validity; Kappa

this study aims to assess the reliability and validity of an Arabic version of the Sleep Hygiene Index (SHI).A methodological study was carried out in four stages: initial translation by 2 professional translators, evaluation and synthesis of the initial translation by project managers, back-translation and validation. The Arabic (SHI-AR) and English (SHI-ENG) versions of the SHI were administered across Lebanon as an anonymous online survey in April 2020. Internal consistency of the SHI-AR and inter-rater reliability were assessed by calculating Cronbach alpha (α) and Intraclass Correlation Coefficient (ICC) respectively. Inter-rater agreement for each item of the SHI was measured using Cohen's Kappa coefficient. Construct validity was investigated by exploratory factor analysis (EFA).363 participants were enrolled in the study (129 men, 234 women, mean age 30 ± 11 years). There was no statistically significant difference between mean overall scores on the 2 versions of the SHI with mean scores of 19.16 ± 7.4 and 19.25 ± 7.6 on SHI-AR and SHI-ENG respectively (p = 0.265). Internal consistency was satisfactory (α = 0.749), and the inter-rater agreement for the total scores of the 2 versions of the SHI was excellent (ICC = 0.980). All items of the SHI showed substantial to high level of agreement between the 2 versions. EFA established four factors underlying the questionnaire.The Arabic version of the SHI is a valid tool to assess sleep hygiene in Arabic speaking populations.