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University Student Depression Inventory, Brazilian Version, Construct Assessment
Fernanda Pâmela Machado1, Marcos Hirata Soares1, Katya Luciane de Oliveira1
1Universidade Estadual de Londrina. Londrina, Paraná, Brazil.
The University Student Depression Inventory, Brazilian version (USDI-BR) demonstrates strong validity and internal consistency. This 30-item, 4-factor scale is a reliable tool for assessing depression in university students.
Area of Science:
- Psychometrics
- Mental Health Assessment
Background:
- Depression is a significant concern among university students.
- Validated instruments are crucial for accurate assessment and intervention.
Purpose of the Study:
- To evaluate the construct validity and internal consistency of the University Student Depression Inventory, Brazilian version (USDI-BR).
Main Methods:
- Methodological study with a snowball sample of 334 students.
- Confirmatory factor analysis and reliability analyses (McDonald's omega, Cronbach's alpha).
- Principal component analysis with varimax and oblimin rotations.
Main Results:
- The USDI-BR showed excellent internal consistency (ω = 0.95).
- The scale retained 30 items and a 4-factor structure, including a new factor for 'Death wish and social withdrawal'.
Conclusions:
- The USDI-BR provides evidence of validity and internal consistency.
- Further research is recommended to expand the evidence of its psychometric properties.
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