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Table 1 Means, standard deviations, and z values for differences on adolescent-rated (CDI-2:C) and parent-rated depressive symptoms (CDI-2:P) between the intervention and control condition

From: Randomized control trial testing the effectiveness of implemented depression prevention in high-risk adolescents

  Intervention condition (N = 66) Control condition (N = 64)   
Adolescent-rated M SD M SD z value p
 CDI-2:C T0 18.66 4.21 18.42 4.54 .41 .679
 CDI-2:C T1 16.18 4.92 15.68 7.08 .45 .655
 CDI-2:C T2 13.32 7.07 14.71 9.06 − .80 .423
 CDI-2:C T3 12.10 6.85 13.72 8.72 − .98 .326
 CDI-2:C T4 10.78 7.05 13.32 7.50 − 1.98 .048
Parent-rated (N = 60) (N = 59)   
 CDI-2:P T1 20.14 5.54 16.78 5.86 2.57 .010
 CDI-2:P T2 18.66 6.00 15.09 6.36 2.96 .003
 CDI-2:P T3 17.42 6.27 14.41 6.21 2.94 .003
 CDI-2:P T4 16.59 6.34 14.07 6.53 2.10 .035