A researcher tries to make sure that subjects in the experimental and control groups are very similar to each other.This is done in order to reduce the effects of which type of variables

Question

Quizplus · Accepted Answer

Extraneous variables are variables that are not being studied but can potentially affect the outcome of the experiment. By making sure that the experimental and control groups are similar, the researcher can reduce the effects of extraneous variables and increase the internal validity of the study.

A Researcher Tries to Make Sure That Subjects in the Experimental