This is an evaluation of the Incredible Years® Teacher Classroom Management (IY®-TCM) programme. IY®-TCM is a continuing professional development programme which aims to develop teachers’ classroom management techniques, improve behaviour in the classroom, reduce disruption to learning, and increase attainment. Due to the disruption to statutory testing in schools relating to the Covid-19 pandemic the impact of the programme on attainment could not be measured as planned. Disruption to school attendance due to Covid-19 also meant the exposure pupils had to the IY®-TCM strategies was not as high as anticipated as the majority of pupils were not in school for some of the trial period.
