What are the two essential features of true experimental designs?
A)Dependent and attribute variables
B)Manipulation and random assignment
C)Blinding and counterbalancing
D)Theory and matching
E)Pretest and posttest

Question

Quizplus · Accepted Answer

The two essential features of true experimental designs are manipulation of an independent variable and random assignment to groups. Manipulation involves changing the independent variable to observe its effect on the dependent variable, and random assignment ensures that there are no pre-existing differences between groups that might affect the outcome. The other options listed are important considerations in experimental design, but they are not essential features of true experiments.

What Are the Two Essential Features of True Experimental Designs