What is the method or format of the Cronbach's alpha coefficient that a nurse researcher can expect to use as a test for reliability?
A) Comparison of each item in the scale simultaneously with each other item
B) Determination of the correlation between the odd- and even-numbered items of an instrument
C) Determination of a correlation based on the consistency of responses to all items of a single-test form
D) Demonstration of a high degree of agreement when the behavior or change is observed by two or more observers

Question

Quizplus · Accepted Answer

Correct C: A Cronbach's alpha simultaneously correlates the consistency of responses to all the items of a test administered at one time.
Incorrect A: Cronbach's alpha simultaneously compares each item in the scale with the others.This Answerwer is not specific enough.
Incorrect B: This Answerwer illustrates split-half reliability.
Incorrect D: The Answerwer illustrates interrater reliability.

What Is the Method or Format of the Cronbach's Alpha