A nurse researcher would want to use a Kuder-Richardson (KR-20) coefficient to establish the internal consistency of an instrument in which case?
A) When questions are open-ended
B) When multiple choice tests are analyzed
C) When the instrument uses a Likert-type response scale
D) When the instrument is designed to measure more than one concept

Question

Quizplus · Accepted Answer

The Kuder-Richardson (KR-20) coefficient is specifically used for measuring the internal consistency of dichotomous (yes/no, true/false) items, which are common in multiple-choice tests. It is not suitable for open-ended questions, Likert-type scales, or instruments designed to measure multiple concepts.

A Nurse Researcher Would Want to Use a Kuder-Richardson (KR-20)