A school counselor decides to examine all students' cognitive ability and achievement test scores in her school by using the CogAT and the Stanford Achievement Test. She then identifies all students who have significantly higher cognitive ability than achievement scores. Which of the following is NOT likely a source of these differences?

Question

Quizplus · Accepted Answer

Poor reliability and validity of the instruments cannot cause differences between cognitive ability and achievement test scores. However, factors such as learning disabilities, problems at home or school, and motivational problems could contribute to differences between cognitive ability and achievement scores.

A School Counselor Decides to Examine All Students' Cognitive Ability