Jan has developed a software package to measure intelligence through images rather than verbal skills. Initial testing shows that when the same volunteers took the test multiple times, their scores would vary by up to 40%. It is difficult to know which score to believe. Therefore, Jan knew he had to work on improving the test's _____.
A) standardization
B) norms
C) reliability
D) mental age

Question

Quizplus · Accepted Answer

The variability in scores from one administration of the test to another suggests that the test lacks consistency or reliability. Jan needs to improve the test's reliability so that it consistently measures intelligence rather than producing unreliable or inconsistent results. Standardization, norms, and mental age are related concepts but are not directly related to the issue of inconsistent scores on the test.

Jan Has Developed a Software Package to Measure Intelligence Through