Which of the Following Is the Best Example of Test-Retest

Multiple Choice

Which of the following is the best example of test-retest reliability?

A) Patrick scores 115 on an IQ test; when he takes the same test one month later, he scores 117.
B) Kirsten takes two different IQ tests; she scores 100 on the first and 102 on the second.
C) Austin takes an intelligence test; Melinda gives his test a score of 85, while Brandon gives it a score of 105.
D) Isabella scores 140 on the first half of an IQ test but only 100 on the second half.