In Saudi Arabia, With Its Tightly Knitted Communities, There Is A Focus on Collectivistic Ideals That Accentuates Group Goals Over Individualistic Aims. However, Western Culture Constitutes A Pervasive Individualistic Milieu Emphasizing Personal Choice and Rights. We Set to Validate the Psychometric Properties of Dass-21 In the Saudi Arabian Culture, As No Studies to Date Have Provided In-Depth Results for The Arabic Adaptation Of The Dass-21 Questionnaire. Methods This Study Was Descriptive And Included Both Primary And Secondary Data. The Primary Data Source Was A Structured Dass Questionnaire. Cronbach’s Alpha And Hierarchical Omega Were Conducted To Analyze The Consistency Of The Total Dass-21 Scale And Its Three Subscales. Confirmatory Factor Analysis Was Performed On The Data. Different Factor Structures, Including One-Factor, Two-Factor, Three-Factor, And FourFactor Structures, Were Examined And Compared In Terms Of Absolute Fit Indices That Included The Chi-Squared Test, Root Mean Square Error Of Approximation (Rmsea), Comparative Fit Index (Cfi), Goodness-Of-Fit Index (Gfi), Root Mean Square Residual (Rmr), And Standardized Root Mean Square Residual (Srmr).