The most effective way to limit the effects of extraneous variables in an experiment is to use
A) randomization.
B) matched groups.
C) homogeneous selection.
D) subjects as their own control.

Question

Quizplus · Accepted Answer

Randomization helps to evenly distribute extraneous variables among the treatment groups, reducing their impact on the results. This is considered the most effective method for controlling extraneous variables. Matched groups and homogeneous selection can also help, but they are not as effective as randomization. Using subjects as their own control may be useful in certain situations, but it does not directly address extraneous variables.

The Most Effective Way to Limit the Effects of Extraneous