Background and Aim: Marital adjustment is one of the most important factors affecting family function. According to communication approaches, the existence and training of communication inhibitors has a significant role in increasing marital adjustment and reducing the problems of intimate relationships. The purpose of this study was to investigate the effect of practical application of intimate communication skills (PAIRS) on marital adjustment.

Methods: This quasi-experimental study was a pretest-posttest design with control group. The statistical population consisted of women who were referred to an intervention center in individual, family and social crises in Bojnourd in 1395 due to incompatibility and marital problems. The sample consisted of 26 people who were selected by convenience sampling method and randomly assigned to experimental and control groups (each group was 13). The data collection tool was Esperner's marital adjustment questionnaire, completed before and after intervention by both groups. The experimental group participated in 8 sessions of two hours of practical training in communication skills and the control group did not receive any intervention. Data were analyzed using one-variable covariance analysis (ANCOVA) and multivariate analysis of covariance (MANCOVA).

Results: The findings of this study showed that the practical application of communication skills is effective in increasing marital adjustment (p<0.05). Also, the practical application of communication skills increased the marital satisfaction dimensions (p<0.05), marital correlation (p <0.05), marital satisfaction (p<0.05) and marital affection (p<0.05).

Conclusion: Practicing practical use of communication skills increases marital adjustment. Therefore, in counseling and marital interventions, it is possible to use intimate communication skills to improve couples' relationships and increase their compatibility.