There is evidence that practitioners can facilitate young people’s progress through the stages of change and improve overall treatment results by matching interventions (including but not limited to the processes of change) according to the readiness and motivation of the client regarding change (DiClemente et al., 1991; Mattson et al., 1994; Mattson, 1998). Giovazazolias and Davies (2005) report that “….careful assessment of the stage of motivation and individual-tailored intervention should be an essential element of any treatment program for drug and alcohol addicted clients” (p.181).