Determining the Effectiveness of Acceptance and Commitment (ACT) Therapy on Interdependence, loneliness Feeling and attribution style of the wives of addicts

   The purpose of this study was to determine the efficacy of acceptance-based treatment and commitment to interdependence, loneliness and Attributional styles of addicts' wives. The present study was a quasi-experimental design with a pretest-posttest with control group and from the perspective of the purpose, the research was applied. The statistical population of the study consisted of all wives of drug addicts in Tehran. The sample of the present study was based on objective sampling based on available sampling including 30 subjects (15 subjects in each group, 15 in the experimental group and 15 in the control group). The research instruments were Spen-Fisher questionnaire (1991), loneliness questionnaire, Attributional style styles, and adherence-based therapy package. Data were analyzed by repeated measures of covariance and Bonferrini test.  Findings showed that considering the fact that the level of significance is smaller than α, also considering that the effect of pre-test was covariate by covariance test, it can be concluded that in the context of the variables of dependency, loneliness and Attributional styles, Treatment based on admission and commitment has been significantly effective. Also, considering all the three variables, we can conclude that the experimental intervention has led to changes in the experimental group. So the treatment affected the decrease in dependency and loneliness and the change in the Attributional style.