A Researcher Studies Length of Time in College, First Through

Multiple Choice

A researcher studies length of time in college, first through fourth year, and its relation to academic motivation.To get the most detail out of her measures, she assesses each student in both the fall and spring semesters of each of their four years in school.She finds that students have increasingly higher motivation from their first semester to their seventh semester (the start of their fourth year) , with a trailing off in the last semester.What is the independent variable in this study?

A) year in school
B) semester in school
C) academic motivation
D) time of year in which the assessment was completed