Table 2.

Internal Consistency and Test–retest Reliability of the PHQ-A, GAD-7, and SDQ Screening Tools in Mozambican Adolescents

Questionnaire	Internal Consistencya	Test–Retest Reliabilityb
PHQ-A	0.80	0.74 (0.52–0.87)
GAD-7	0.84	0.70 (0.52–0.82)
SDQ Total	0.80	0.77 (0.63–0.87)
SDQ Internalizing	0.73	0.63 (0.43–0.77)
SDQ Externalizing	0.65	0.74 (0.58–0.84)

^aCronbach’s alpha calculated with full sample of 485 adolescents

^bIntraclass correlation coefficent calculated from randomly selected sub-sample of 49 adolescents tested one week after initial test