We explored Norwegian primary school teachers' fidelity in their use of Second Step, a social competence intervention program. The investigation examined teachers' (N = 17) use of the program and their perceptions of fidelity of implementation through semistructured interviews. The findings suggest that, to a large extent, teachers adapt the…

This qualitative case study reports and interprets school principals' perceptions of their role in implementing and sustaining Second Step, a social skills development programme. The study compares schools that implemented the programme as a formalised strategy for all teachers and those that did not. The results suggest that the key features of…