1) To what extent does taking more units in computer science courses predict students’ STEM major choices in 4-year post-secondary institutions, controlling for credits earned in math and science, ACT math scores, gender, social economic status (SES), and racial background? 2) To what extent does taking more units in computer science courses predict students’ STEM major choices in 2-year post-secondary institutions, controlling for credits earned in math and science, ACT math scores, gender, SES, and racial background? 3) To what extent does taking more units in computer science courses lead to a significant difference in students’ major choices between4-year and 2-year post-secondary institutions, controlling for credits earned in math and science, ACT math scores, gender, SES, and racial background?