On a newly developed IQ test, if an individual scores at the 110 level on the first half of the test, and 150 on the second half of the test, what does this test appear to lack?
A) reliability
B) standardization
C) predictive validity
D) appropriate norms

Question

On a newly developed IQ test, if an individual scores at the 110 level on the first half of the test, and 150 on the second half of the test, what does this test appear to lack?
A) reliability 
B) standardization 
C) predictive validity
D) appropriate norms

Quizplus · Accepted Answer

The significant difference between the scores on the first and second halves of the test suggests that the test lacks reliability, which refers to the degree to which a test provides consistent and stable scores. If the test were reliable, an individual's score should be consistent across different sections or parts of the test. Therefore, the difference in scores on the different halves of the IQ test suggests that it is not a reliable measure of intelligence.

On a Newly Developed IQ Test, If an Individual Scores