Virtually every adviser, including the ones in chemistry tells students not to skip the introductory courses. Since students do not get credit for these courses, the advice is to almost always taken. Thus, we assume no or very few students in the sample tested out of this course. Enrollment and Graduation Rates Table 2 presents the graduation rates for students who passed each course, those who withdrew or failed, and those who never enrolled. For each course, the rates for those who passed are higher than for those who either did not enroll in the courses or enrolled and failed to pass.
All differences are statistically significant.
AP students are included in the analyses for MATH 124. SAT Verbal scores were practically equal for the two CHEM 140 groups, but significantly higher for the students who passed 124 and both courses. The students in the sample who graduated did so in 104 distinct majors. Five of these were at the Bothell and Tacoma campuses, representing 14 students, and were eliminated from further analyses. All majors of students with more than one major were taken into account, but each student is counted only once.