DASS-21: assessment of psychological distress through the Bifactor Model and item analysis
| Autor: | Evandro Morais Peixoto, Karina da Silva Oliveira, Carolina Rosa Campos, Joel Gagnon, Daniela Sacramento Zanini, Tatiana de Cássia Nakano, José Maurício Haas Bueno |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Psico-USF, Vol 26, Iss 4, Pp 757-769 (2022) |
| Druh dokumentu: | article |
| ISSN: | 2175-3563 1413-8271 |
| DOI: | 10.1590/1413-82712021260413 |
| Popis: | Abstract The term distress has been used to refer to a continuous variable operationalized through symptoms of depression, anxiety, and stress. In this study, psychological distress is measured using the Depression, Anxiety, and Stress Scale (DASS-21). Confirmatory Factor Analysis compared the fit of different measurement models for the DASS-21, with the parameters of the items verified through the Andrich rating scale model. A non-clinical sample of 530 participants (mean age=24.35±6.55 years; 71.89% women) responded to the instrument. According to the theoretical hypothesis, the results indicated a better fit for the bifactor model, composed of three specific factors (depression, anxiety, and stress) and a general factor (general psychological distress). The assessment of the item properties allowed for a better understanding of the organization of the continuum represented by the construct psychological distress. It is possible to conclude that the Brazilian version of the DASS-21 is an adequate measure for psychological distress. |
| Databáze: | Directory of Open Access Journals |
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