Which of the following is true of ceiling and floor effects?
A)They cannot be detected by manipulation checks.
B)They are only problematic in pretest/posttest designs.
C)They can be caused by poorly designed dependent variables.
D)They don't affect the results of a study.

Question

Quizplus · Accepted Answer

Ceiling and floor effects can be caused by dependent variables that do not have a wide range of possible values, leading to a clustering of scores at either extreme. This can be addressed by using more sensitive measures or altering the design of the dependent variable. A and B are incorrect because manipulation checks can help detect ceiling and floor effects, and these effects can occur in any research design, not just pretest/posttest designs. D is incorrect because ceiling and floor effects can significantly impact the results of a study.

Which of the Following Is True of Ceiling and Floor