Manipulating a variable to test for a causal relationship often times is ______.
A) difficult or impossible
B) unnecessary or wasteful
C) time consuming or costly
D) unethical or disallowed

Question

Quizplus · Accepted Answer

Manipulating a variable to test for a causal relationship can be difficult or impossible because of ethical or practical considerations, such as not being able to randomly assign participants to different conditions or not being able to manipulate certain variables.

Manipulating a Variable to Test for a Causal Relationship Often