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Table 2 Estimates from linear mixed models of SCL-8 scores across the seven measurement points

From: Effects of a school-based intervention on levels of anxiety and depression: a cluster-randomized controlled trial of the MindPower program in ten high schools in Norway

  Dependent variable: SCL-8
[1] [2] [3] [4] [5] [6] [7] [8]
Time   0.003*** 0.003*** 0.003*** 0.003*** 0.002* 0.003 0.002*
   (0.001) (0.001) (0.001) (0.001) (0.001) (0.002) (0.001)
Group      0.087** 0.090** 0.096** 0.097***
      (0.037) (0.037) (0.038) (0.035)
Course       0.055** 0.041 0.053**
       (0.024) (0.030) (0.024)
Time*Course        − 0.002  
        (0.002)  
Male         − 0.433***
         (0.035)
Constant 1.887*** 1.888*** 1.888*** 1.916*** 1.873*** 1.839*** 1.854*** 2.029***
  (0.018) (0.018) (0.018) (0.041) (0.044) (0.047) (0.050) (0.039)
Observations 4577 4577 4577 4577 4577 4577 4577 4577
Log likelihood − 4525.296 − 4513.082 − 4471.405 − 4468.469 − 4465.725 − 4463.210 − 4462.880 − 4389.644
Akaike Inf. Crit 9056.592 9034.164 8954.809 8950.939 8947.450 8944.419 8945.761 8799.289
       *p < 0.05 **p < 0.01 ***p < 0.001