Convergent validity

Physics

Mathematics

Confirmatory factor analysis

Construct validity

Clinical psychology

Discriminant validity

Statistics

Psychiatry

Psychology

Measurement invariance

Psychometrics

DASS

Scale (ratio)

Anxiety

Quantum mechanics

Internal consistency

Structural equation modeling

Social psychology

Frontiers in Psychology

To examine the cultural limitations and implications in the applicability of the Depression Anxiety Stress Scale 8-items (DASS-8)-a shortened version of the DASS-21 recently introduced in an Arab sample-this study evaluated its psychometric properties, including measurement invariance, among healthy subjects from the United States, Australia, and Ghana. Confirmatory factor analysis revealed good fit of the DASS-8 relative to a 12-item version (DASS-12). Both the DASS-8 and the DASS-12 were invariant at all levels across genders, employment status, and students vs. non-students. The DASS-8/DASS-12 also expressed invariance at the configural and metric levels across all countries, albeit scalar invariance was not maintained due to misspecification of the factor loadings in the Ghanian sample. Mann-Whitney U test revealed significantly lower levels of mental symptomatology on the DASS measures among Ghanian students than in English-speaking respondents (both students and non-students). The DASS-8 expressed excellent internal consistency (coefficient alpha = 0.89), good convergent validity-noted by high values of item-total correlations (

The Depression Anxiety Stress Scale 8-Items Expresses Robust Psychometric Properties as an Ideal Shorter Version of the Depression Anxiety Stress Scale 21 Among Healthy Respondents From Three Continents