A Researcher Creates a Scale to Measure Students' Satisfaction with Their

Multiple Choice

A researcher creates a scale to measure students' satisfaction with their sociology courses.After identifying six key questions and organizing them into a composite measure,the researcher averages the six items into a variable called "sociology satisfaction." The Cronbach's alpha score was 0.8,which means the

A) measure is unreliable.
B) items on the scale do not predict each other.
C) scale items are all measuring some aspect of satisfaction with sociology courses.
D) researchers should try to adjust the scale so that the Cronbach's alpha is closer to 1.