Which of the following could be used to eliminate the confounding influence of extraneous variables?
A) holding the variable constant
B) rejecting the participant that is above or below a certain criteria
C) using random assignment
D) a and c

Question

Quizplus · Accepted Answer

Holding the variable constant and using random assignment are both effective strategies to eliminate the confounding influence of extraneous variables. Holding a variable constant ensures that it does not vary across the study, eliminating its potential confounding effect. Random assignment helps ensure that extraneous variables are evenly distributed across experimental groups, reducing their potential to confound the results.

Which of the Following Could Be Used to Eliminate the Confounding