Question

Although it is consistent between tests- i.e., whatever you score you get on the test the first time you take it, you will tend to get the same score every time you take it- the results of a new intelligence test can’t accurately predict how intelligent someone really is. Therefore, this test lacks what?

Answer 1

Answer:

Validity

Explanation:

Validity is a judgment based on the extent of various types of evidence. The relevant evidence includes the measure’s reliability, whether it covers the construct of interest or not.  

A typical example is when a group of students take a test designed to measure working memory. The results are reliable, but participants’ scores correlate strongly with their level of reading comprehension. This indicates that the method lacks validity: the test may be measuring the students’ reading comprehension instead of their working memory. The following factors also affects reliability; fatigue, stress, sickness, motivation, poor instructions and environmental distractions.