In order for a study to be considered an experiment, there must be both random assignment of subjects/participants to groups, and ___________.
A)equal numbers of male and female subjects
B)preliminary testing to see if participants are eligible
C)specific measurement of variables
D)manipulation of an independent variable

Question

Quizplus · Accepted Answer

An experiment requires the manipulation of an independent variable to examine its effect on a dependent variable, alongside random assignment of participants to control for extraneous variables.

In Order for a Study to Be Considered an Experiment