Experimental research requires that the responses of _____ group(s)be examined.
A)at least one
B)at least five
C)at least two
D)at least three

Question

Quizplus · Accepted Answer

Experimental research typically involves the manipulation of an independent variable and the control of extraneous variables to determine the effect on a dependent variable. This usually requires at least two groups - an experimental group that receives the manipulated variable and a control group that does not receive the manipulation. The responses of both groups are compared to determine if there was a significant difference that can be attributed to the manipulation. While some studies may involve more than two groups, at least two are typically required in experimental research.

Experimental Research Requires That the Responses of _____ Group(s)be Examined