Jane recently completed a new test that was designed to measure her IQ.She took the test twice and each time received the same score.The test administrator told her that her scores indicate she is extremely intelligent.However,Jane scored well below average when she completed the Stanford-Binet and the Wechsler Adult Intelligence Scale (WAIS),two well-established intelligence tests.Based on this pattern of results,it appears that the new measure of IQ was a ________.
A) valid measure of intelligence
B) valid but unreliable measure of intelligence
C) reliable but not valid measure of intelligence
D) more accurate measure of intelligence than the Stanford-Binet or the WAIS

Question

Quizplus · Accepted Answer

The fact that Jane scored well below average on two well-established intelligence tests suggests that the new measure of IQ was not valid, meaning it does not actually measure what it claims to measure. However, the fact that she received the same score on the new test twice indicates it was reliable, meaning it produced consistent results. Therefore, the new measure was a reliable but not valid measure of intelligence. Option A is incorrect because the new measure was not valid. Option B is incorrect because it was reliable but not valid. Option D is unsupported by the information provided.

Jane Recently Completed a New Test That Was Designed to Measure