Determine the evaluation guideline that applies best in questioning the results of the described study.
-A high school dean conducted a study and reported that "Working lowers the GPA of high school juniors by
22%." The data consisted of a sample of 38 working students having a GPA of 2.26 and a sample of 38
Nonworking students having a GPA of 2.91.
A)Consider the source of the data.
B)Consider the source of the study.
C)Consider possible confounding variables.
D)Consider the summary value as calculated from the data.

Question

Quizplus · Accepted Answer

C) Considering possible confounding variables is crucial in this context because other factors (not just working or not working) could influence the GPA of high school juniors, such as socioeconomic status, study habits, or support systems. These variables could skew the results and lead to incorrect conclusions about the impact of working on GPA.

Determine the Evaluation Guideline That Applies Best in Questioning the Results