Date Approved


Embargo Period


Document Type


Degree Name

M.A. in School Psychology


Educational Services and Leadership


College of Education

First Advisor

Dihoff, Roberta


Birth order; Brothers and sisters--Psychology


Educational Psychology


The purpose of this study was to associate birth orders effect on an individual's perception of their sibling, family, and social roles. Research has asserted that children learn by observing the actions of their siblings, which transcend into other aspects of their own lives. One hundred and one undergraduate college students were separated into three categories: younger sibling subjects (n=47), older sibling subjects (n=49), and only children subjects (n=5). The participants were asked to fill out a questionnaire comprised of 25 statements about their sibling, family, and social relationships based on a 5 point likert scale. A Kruskal-Wallis nonparametric K independent samples test was used to find any significant differences in the mean scores of the three groups. The data revealed that younger siblings' means scores were significantly higher than scores of older sibling subjects in areas of personal attributes, interest, and sibling influence of social relationships. Older sibling subjects' mean scores were significantly higher than younger sibling subjects' mean scores regarding intellectual superiority.