What Are Experimental Groups

Multiple Choice

What are experimental groups?

A) They are the groups of people who conduct the experiment.
B) They are the groups of people who act as spectators in the experiment.
C) They are the groups of people who make observations with respect to the study and report it to the researcher.
D) They are the groups of people who fund the study.
E) They are the groups of participants who receive the stimulus in an experiment.