Psychometric Properties of the Arabic Translation of the Shitsu-Taikan-Sho (alexisomia) Scale (AR-STSS) in adults

Objective Our aim in this study is to assess the psychometric properties of the Arabic version of the Shitsu-Taikan-Sho (Alexisomia) Scale (Ar-STSS) in a sample of Lebanese adults. Methods Data for this cross-sectional study was gathered using a Google form link. A sample of 758 Lebanese adults (61.2% females, mean age of 30.27 ± 13.80 years) completed an online questionnaire. Results According to CFA, the initial model's fit was poor: χ ² /df = 1266.51/227 = 5.58, RMSEA = .099 (90% CI .094, .104), SRMR = .114, CFI = .748, TLI = .719. The Turkish model's CFA indicated a better fit: χ ² /df = 474.70/132 = 3.60, RMSEA = .075 (90% CI .067, .082), SRMR = .071, CFI = .886, TLI = .867. The second-order model's fit indices were good: χ ² /df = 474.70/132 = 3.60, RMSEA = .075 (90% CI .067, .082), SRMR = .071, CFI = .886, TLI = .867. The composite reliability of the scores was adequate (ω = .89). No significant difference was observed between sex in terms of alexisomia (53.19 ± 13.58 vs 52.28 ± 11.93; t (465) = .76; p  = .450). Higher alexisomia were significantly associated with higher alexithymia (r = .50; p < .001), depression (r = .37; p < .001) and anxiety (r = .26; p < .001). Conclusion The linguistically validated Arabic version of the Shitsu-Taikan-Sho (Alexisomia) Scale can be used to screen for alexisomia among Lebanese adults.