When Ricardo took the ACT Assessment this year, he was allowed to use a graphing calculator on the mathematics portion of the exam.His older sister is surprised, because when she took the test 6 years ago, calculators were not allowed for any portion of the exam.This suggests that:
A)it will be difficult to meaningfully compare Ricardo's score with the score his sister obtained
B)Ricardo probably earned a higher score on the exam than his sister did
C)the current form of the ACT Assessment has poor construct validity
D)Ricardo's score is probably less reliable than his sister's score

Question

Quizplus · Accepted Answer

The allowance of graphing calculators on the mathematics portion of the ACT Assessment for Ricardo, but not for his sister years earlier, introduces a significant change in test conditions. This change could affect performance and thus makes direct comparison of their scores challenging, as the conditions under which the scores were obtained are not equivalent.

When Ricardo Took the ACT Assessment This Year, He Was