Depression anxiety stress scales-21 : Factor structure and test-retest invariance, and temporal stability and uniqueness of latent factors in older adults
- Authors: Gomez, Rapson , Summers, Mathew , Summers, Avril , Wolf, Anna , Summers, Jeff
- Date: 2014
- Type: Text , Journal article
- Relation: Journal of Psychopathology and Behavioral Assessment Vol. 36, no. 2 (2014), p. 308-317
- Full Text: false
- Reviewed:
- Description: This study examined the factor structure and test-retest invariance, and temporal stability and uniqueness of the latent factors (depression, anxiety, and stress) of the Depression Anxiety Stress Scales-21 (DASS-21; Lovibond & Lovibond, 1995) in group a of 269 older adults (age ranging from 60 to 85 years) from the general community. Participants completed the DASS-21 twice, 3 months apart. Confirmatory factor analysis (CFA) of their ratings at Time 1 indicated support for the original 3-factor oblique model (factors for depression, anxiety, and stress). Additional analyses showed support for test-retest invariance for both the measurement (configural, metric and thresholds) and structural (variances and covariances) components of this model. Results also indicated temporal stability and uniqueness of the latent factors. The practical, theoretical, research and clinical implications of the findings are discussed. © 2013 Springer Science+Business Media.
Depression anxiety stress scales-21 : Measurement and structural invariance across ratings of men and women
- Authors: Gomez, Rapson , Summers, Mathew , Summers, Avril , Wolf, Anna , Summers, Jeff
- Date: 2014
- Type: Text , Journal article
- Relation: Assessment Vol. 21, no. 4 (2014), p. 418-426
- Full Text: false
- Reviewed:
- Description: The current study examined the measurement and structural invariance of the Depression Anxiety Stress Scales-21 (DASS-21) across ratings provided by men (N = 227) and women (N = 460). Multiple-group confirmatory factor analysis (CFA) supported full metric invariance and intercepts invariance for 20 of the 21 items. Invariance for all item intercepts was supported by multiple indicators multiple causes (MIMIC) procedure that controlled for the effects of age. Multiple-group CFA supported invariance for all factor variances and covariances. This procedure and the MIMIC analyses found equivalency for all latent mean scores. These findings indicate good support for measurement and structural invariance of the DASS-21 rating across men and women. The psychometric and practical implications of the findings are discussed.