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With the rising rates of depression and suicidality among university students, accurate measures of depression have become an essential public health matter. The Patient Health Questionnaire-9 (PHQ-9) is one of the measures often used to estimate and compare group depression prevalence rates. In this study we examined the factor structure, measurement invariance (country and gender), and reliability of the PHQ-9 in a sample of university students (N = 1064; Mage = 22.67 yrs., SD = 5.17; 61% = Female) from three African countries (South Africa, Kenya, Ghana). Four alternative factor structures of the PHQ-9 (i.e., one-factor and three correlated two-factor models) were tested with confirmatory factor analysis. Results supported the two-factor model (somatic and non-somatic factors), and the measure was invariant across gender and the three African countries. The findings suggest that the PHQ-9 may be suitable for estimating and comparing depression prevalence across groups of African university students. [ABSTRACT FROM AUTHOR]

Measurement invariance of the Beck Depression Inventory-Second Edition across race (Blacks and Whites) was examined in a sample of university students, from two universities from diverse geographical areas of South Africa (N = 870). Multigroup confirmatory factor analysis (i.e., means and covariance structures) was used to test the factorial invariance of the hierarchical four-factor structure, composed of three first-order factors (i.e., Negative Attitude, Performance Difficulty, and Somatic Complaints) and one second-order general factor (Depression) found with South African students. Evidence of measurement invariance was established at the level of configural, metric, and scalar invariance. However, there were some evidence of differential additive response style across race—with two non-invariant intercepts (Item 5 and 14) being identified. Results also revealed significant latent mean differences favoring Black students on the Performance Difficulty and Somatic Complaints factors but not on the Negative Attitude factor. Findings suggest that the Beck Depression Inventory-Second Edition provides an assessment of the severity of depressive symptoms that is equivalent across race in university students. [ABSTRACT FROM AUTHOR]