Meta-analysis of addiction psychosocial interventions

The present study investigates the effectiveness of interventions in the field of addiction and identifies the most effective interventions with the social worker approach. This research has been carried out with the meta-analysis method. The statistical population consisted of all researches conducted in the field of drug addiction (printed and valid) over the past decade (1967-2008), which has been used by scientific sources such as the "specialized journals of light", the "Scientific Information Center of Jihad University," "Portal of the Humanities Society". According to the entry criteria, 66 studies were selected and examined, and CMA2 software was used to obtain the effect size. The results showed that interventions with the cognitive-behavioral method (-0.55) with the most significant effect size had the most effect on addiction treatment. Also, the treatment group with effect size (0.52) is high according to theoretical standards. Metacognitive therapy and other therapy and music therapy with effect size (0.31) and (0.20) are moderate. Finally, the interventions performed with the matrix pattern, reality therapy, and behavioral therapy with the effect sizes (-0.16), (0.24), and (-0.19) were lower than the moderate and low levels. The results also show that cognitive-behavioral intervention has been influential in the areas of reducing psychological disorders (0.41), improving quality of life (0.67), reducing cravings, and preventing recurrence (0.50), promoting mental health and its dimensions (0.51). Eventually, we suggest that therapists intervene based on a methodological and scientific model based on education, learning, empowerment, and follow-up to provide the best psycho-social approach to addiction treatment.