The aim of this study was to examine the relation between marital locus of control, perceived fairness in marriage and efficacy of marital conflict resolution, some sociodemographic factors (age, employment status, education) and characteristics of marriage (duration of marriage and parenthood/number of children). The research was conducted on 101 married couple, i.e. 202 men and women in age range 20-55, whose marriage has lasted for a minimum one year. This study attempted to determine the relative contribution of individual’s marital locus of control, sociodemographic factors and characteristics of marriage onto theperceived fairness in marriage. For this purpose, four hierarchical regression analysis were conducted, with two different dependent variables, separately for male and female participants. In first two criterion variable was perceived fairness in marriage. The results have shown that, for women, duration of marriage and external marital locus of control weresignificantly positive predictor and age was negative predictor. For men, positive predictor was external marital locus of control and negative predictor was internal marital locus of control.Theother twohierarchical regression analysis attempted to determine the relative contribution of individual’s marital locus of control, sociodemographic factors, characteristics of marriage and perceived fairness in marriage onto the efficacy of marital conflict resolution. The results has shown that, for women, duration of marriage and external marital locus of control were positive and age and internal marital locus of control were negative predictors. For men, positive predictors were only external marital locus of control and perceived fairness in marriage.Also, this study attemted to determine sex differences in marital locus of control, perceived fairness in marriage and efficacy of marital conflict resolution. The results has shown that there aro no sex differences in those variables.