Which of the following findings suggests that a given test lacks split-half reliability?
A) Jorge achieves a score of 105 on an intelligence test; when he takes the same test one month later, he achieves a score of 130.
B) Martina grades a test and gives it a score of 100; Alexander grades the same test and gives it a score of 70.
C) Trey takes a test that has 30 questions that focus on verbal tasks but only 10 questions that focus on performance tasks.
D) Darlene scores 120 on the first 20 questions of a test but scores only 80 on the second 20 questions.

Question

Quizplus · Accepted Answer

Split-half reliability refers to the consistency of a test's scores across different halves of the test. If someone scores very differently on one half of the test compared to the other half, it suggests that the test may not have split-half reliability. Choice D reveals that the scores on the first half of the test (120) differ significantly from the scores on the second half of the test (80), indicating that the test may lack split-half reliability.

Which of the Following Findings Suggests That a Given Test