A researcher evaluates the internal consistency (reliability)a newly developed scale used in a pilot study and notes a Cronbach alpha coefficient of space 0.72.The researcher will
A) compare the measure with scores from another group of subjects.
B) test the scale for validity prior to using it in another study.
C) try another measure with better reliability in another pilot study.
D) use the scale in the larger study and continue to monitor coefficient results.

Question

Quizplus · Accepted Answer

A Cronbach alpha score of 0.80 to 0.90 indicates that the measure is sufficiently reliable to use in a study,although a value of 0.70 is considered acceptable.The researcher should use the scale with the larger group and monitor this value.It is not necessary,at this point,to compare the measure with scores from another group of subjects.It is not necessary to test the scale for validity prior to using it again.This scale should be used and does not need to be discarded for another scale.

A Researcher Evaluates the Internal Consistency (Reliability)a Newly Developed Scale