Relationship quality has been determined to be a positive factor in the treatment of depression . Although the importance of marriage has been broadly studied, little research has investigated correlations among relationship quality, depressive moods, and attachment styles. Although the prevalence of depressive moods has been documented within populations of Taiwanese/Chinese international students and American college students , Wang and Mallinckrodt found that definitions of ideal attachment differ in these groups. Furthermore, researchers have not yet investigated the effect of cultural differences and attachment styles on the interactions between relationship quality and depressive moods among Taiwanese and Chinese international students.