Although implementation fidelity (IF) is an important factor in interpreting the outcomes of intervention programs, so far there is little knowledge about how it actually relates to them. The purpose of this systematic review was to identify which component of IF (adherence, quality of the intervention, exposure to the intervention and…

Background: The behavioural determinants of health among people with mild/moderate intellectual disabilities (ID) are of increasing concern. With the closure of long-stay institutions, more people with ID are living in the community. As they lead more ordinary and less restricted lives, people with ID may be exposed to social and environmental…