An experiment has two essential features. First, the researcher manipulates the independent variable(s). Second, the researcher makes use of _____.
A)statistical testing
B)random assignment
C)interactions
D)priming

Question

Quizplus · Accepted Answer

Random assignment is essential in experiments as it helps ensure that any differences observed between groups are due to the manipulation of the independent variable(s) and not due to pre-existing differences between the groups.

An Experiment Has Two Essential Features