Which statement is NOT part of the logic of experimental designs?
A) Two or more groups of participants vary on one or more variables at the outset.
B) The participants within one group are given an experience that differs in only one way from the experience given to participants in the other group.
C) The participants in different groups behave differently after the experiences.
D) The different experiences are concluded to have caused the subsequent difference in behavior.

Question

Quizplus · Accepted Answer

Statement A is incorrect because in experimental designs, ideally, groups of participants should not vary on variables at the outset; instead, they should be as similar as possible to ensure that any differences observed are due to the experimental manipulation and not pre-existing differences.

Which Statement Is NOT Part of the Logic of Experimental