A completely randomized experimental design would be the appropriate method to answer which of the following research questions?
A)To determine whether average teacher salaries differ in Ohio, Pennsylvania, and Indiana.
B)To determine whether average teacher salaries differ in Ohio, Pennsylvania, and Indiana, while controlling for differences in salaries that exist across grade levels.
C)To determine the effect of an additional year of experience on a teacher's salary.
D)To determine the joint effects of a teacher's field (math, English, etc.) and whether the teacher works in a public school or a private school on a teacher's salary.

Question

Quizplus · Accepted Answer

A completely randomized experimental design is most suitable for comparing groups without needing to control for other variables, making it appropriate for determining if average teacher salaries differ among states (Ohio, Pennsylvania, and Indiana) without considering other factors like grade levels or fields.

A Completely Randomized Experimental Design Would Be the Appropriate Method