Aim 1
psychotic
INTERACTION
A mixed-effect logit model with random effect of school was used, due to intervention clustering, and accounting for the within-subject repeated-measures effect. The main effects of intervention arm, time and their interactions are reported. Interaction effects (examining the effectiveness of the intervention) at 3-months and 12-months are displayed in odds ratios at 3-months and 12-months are displayed in odds ratios before and after adjustment-1 (baseline psychotic experiences) and adjustment-2 (baseline psychotic experiences, age, gender, nationality and exposure to physical victimisation). A stratified analysis excluded those who reported PEs at baseline, to examine prevention of PEs. Secondary data analysis were conducted on only complete cases using the same statistical technique (eAnalysis 1).