Using data from the National Education Longitudinal Study (NELS), this report examined the prospective relationships between educational expectations and academic achievement among students (n = 10,262) surveyed and tested in Grades 8, 10, and 12. Cross-lagged analyses indicated that between Grades 8 and 10 the path from achievement to expectations was moderately positive and stronger than the path from expectations to achievement; however, between Grades 10 and 12 these paths were equally weak. These results provide evidence for reciprocal effects between educational expectations and academic achievement, but the path between academic achievement to educational expectations seems to be stronger than the reverse path from Grades 8 to 10. (Contains 1 table and 1 figure.)