Research-supported family programmes are proven to be effective in reducing dysfunctional behaviours in youth. A fundamental role is played by professionals with high competence levels and a positive attitude to evidence-based practice (EBP). The aim of the study was to assess the efficacy of prior training for the facilitators of the PCF-AFECT, in order to ascertain whether it led to improvements in their competence levels and whether favourable attitudes to evidence-based practice were associated with higher competence levels.