A researcher develops a 20-question test to measure anxiety and administers it to a group of participants. To evaluate the reliability of the test, the researcher computes a score for the first 10 questions and a score for the last 10 questions for each participant and then computes the correlation between the two scores. What is the researcher measuring?
A) split-half reliability
B) internal reliability
C) test-retest reliability
D) inter-rater reliability

Question

Quizplus · Accepted Answer

The researcher is measuring split-half reliability, which is a method of estimating the internal consistency reliability of a test by correlating scores on two halves of the test. In this case, the first 10 questions and the last 10 questions are considered as two halves.

A Researcher Develops a 20-Question Test to Measure Anxiety and Administers