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Table 4 Analysis of covariance of T2 scores as a function of intervention condition and age group, with T0 scores as covariate

From: Effectiveness of a single-session early psychological intervention for children after road traffic accidents: a randomised controlled trial

Source df MS F p
Posttraumatic stress symptoms: IBS-KJ, T2     
IBS-KJ, T0 (covariate) 1 7256.6 40.83 <.001
Intervention 1 19.2 0.11 .74
Age group 1 39.9 0.22 .64
Intervention × age group 1 104.7 0.59 .45
Error 94 177.7   
Depressive symptoms: DIKJ, T2     
DIKJ, T0 (covariate) 1 1153.3 61.82 <.001
Intervention 1 16.2 0.87 .35
Age group 1 28.5 1.53 .22
Intervention × age group 1 151.2 8.11 .01
Error 94 18.7   
Behavioural problems: CBCL, T2     
CBCL, T0 (covariate) 1 2637.6 60.3 <.001
Intervention 1 148.3 3.39 .07
Age group 1 2.8 0.06 .80
Intervention × age group 1 229.8 5.25 .03
Error 67 43.7