The primary purpose of this study was to explore the correlations between students' perceptions of their relationships with teachers, students' academic achievement and students' classroom behavior. A secondary purpose of the study was to investigate if students' ethnicity, gender and socio-economic status moderate the relationship. A survey was used to assess sixth grade students' perceptions of relationships with their teachers when they were in fifth grade. Significant associations were found between student perceptions of positive relationships and high English Language arts achievement for African for African American, Hispanic, male and low socio economic status (SES) students. Significant associations were also found between higher CST scores in Math For African American, female and low SES students. Finally, negative teacher-student relationships were found to he associated with a higher probability of students receiving referrals for Hispanic, male and Low SES students. The results of this study suggest that positive student teacher relationships are associated with and may contribute to positive academic and behavioral outcomes for vulnerable students. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]