In order to maximize the likelihood that experimental and control groups are similar before any treatment is applied, researchers typically use:
A) naturalistic observation
B) random assignment
C) sampling
D) participant observation

Question

Quizplus · Accepted Answer

Random assignment ensures that participants have an equal chance of being placed in either the experimental or control group, which minimizes the potential for preexisting differences between the two groups. Naturalistic observation and participant observation do not involve creating experimental groups, and sampling does not necessarily ensure equality between groups.

In Order to Maximize the Likelihood That Experimental and Control