Two newly developed IQ tests are administered to 500 people on consecutive days. The mean score on the first test is 60, while the mean score on the second test is 85. On this basis, which of the following do these tests appear to lack?
A) Cross-test reliability
B) Standardization
C) Scoring reliability
D) Split-half reliability

Question

Quizplus · Accepted Answer

The difference in mean scores between the two tests suggests a lack of cross-test reliability, which refers to the consistency of results across different versions or forms of a test. Standardization refers to the use of consistent procedures in administering, scoring, and interpreting a test, scoring reliability refers to the consistency of scoring within a single administration of a test, and split-half reliability refers to the consistency of results between different halves of the same test. These concepts are not necessarily related to the observed difference in mean scores between the two IQ tests.

Two Newly Developed IQ Tests Are Administered to 500 People