From: A pilot cluster randomised controlled trial of a support and training intervention to improve the mental health of secondary school teachers and students – the WISE (Wellbeing in Secondary Education) study
Cluster size (mean no. with data at both time points)
Mean baseline WEMWBS score (SD)
ICC for baseline WEMWBS score (95 % CIs)
All staff
73
48.5 (8.3)
0.01 (0.00, 0.03)
Teachers only
55
48.0 (8.4)
0.01 (0.00, 0.05)