Which of the following is an example of contamination error?
A) irrelevant material on the test
B) guessing by the test taker
C) different time limits for the same test
D) all of the above

Question

Quizplus · Accepted Answer

Contamination error refers to any factor that can invalidate the results of a test. This includes irrelevant material on the test (A), which can confuse or mislead test takers; guessing by the test taker (B), which can skew the results away from actual knowledge or ability; and different time limits for the same test (C), which can create unfair advantages or disadvantages. Therefore, all of the options listed are examples of contamination error.

Which of the Following Is an Example of Contamination Error