A researcher develops a 7-point Likert scale to evaluate feelings of well-being in patients who are undergoing chemotherapy.The researcher administers this measure to other similar patients in other medical centers.This is done to
A) decrease mono-operation bias.
B) improve the test-retest reliability.
C) increase interrater reliability.
D) strengthen the operational definition of constructs.

Question

Quizplus · Accepted Answer

To improve the reliability of the measurement tool,it should be tested in various settings to determine whether it gives consistent measures each time it is used.Mono-operation bias occurs when only one measure is used to evaluate an outcome.Interrater reliability refers to consistent results that occur when various people administer study measures.Evaluating the consistency of a measurement tool does not affect the operational definition of constructs.

A Researcher Develops a 7-Point Likert Scale to Evaluate Feelings