1) What are the relationships among high school exposure to math and science, achievement and motivational attributes as related to math, intent to pursue STEM upon entry into postsecondary education, and entrance into STEM fields of study? 2) How are students’ initial postsecondary education experiences, such as academic interaction, receipt of financial aid, and remediation, related to STEM entrance? 3) How do these relationships vary by race, gender, and SES?