Abstract: Social relations model was introduced to the family study in 1984, and applied in multiple family relations study. Round-robin design is adopted in family researches with social relations model; individual effect, relational effect and family effect could be evaluated, and individual and relational reciprocal effects, inter-generational and intra-generation reciprocal effects, and the similarity between family members could also be evaluated by social relations model. Data in social relation model is analyzed by single family effect size or by structural equation modeling. Four points should be paid attention to in the future study with social relations model, that are, reflecting more complex of family relations, analyzing data from the three-person group, finding validity indexes of effect and processing missing values.

Key words: social relations model, round-robin design, family study