Paula examined differences in college persistence between students who took the SAT either before their junior year or during their junior year of high school. She compared students with the same score and found that students had taken the SAT before their junior year of high school were more likely to stay in college than those who had taken the SAT during their junior year. Paula employed which method for controlling the extraneous variable, performance, in her study?
A) Matching
B) Comparing homogeneous subgroups
C) Analysis of covariance (ANCOVA)
D) Manipulation of independent variable

Question

Quizplus · Accepted Answer

Paula employed matching to control for performance, as she compared students with the same SAT score who had taken the test at different times. Matching involves selecting participants who are similar on a specific variable (in this case, SAT score) in order to reduce the impact of that variable on the outcome of the study.

Paula Examined Differences in College Persistence Between Students Who Took