The most commonly applied estimate of a composite scale's reliability is:
A)coefficient alpha
B)coefficient beta
C)criterion coefficient
D)an index coefficient

Question

Quizplus · Accepted Answer

Coefficient alpha, also known as Cronbach's alpha, is the most commonly used estimate of a composite scale's reliability. It measures the internal consistency of the items in the scale and is used to assess how well the items in a scale measure the same construct. Coefficient alpha ranges from 0 to 1, with higher values indicating greater reliability. A value of 0.7 or above is generally considered acceptable for research purposes.

The Most Commonly Applied Estimate of a Composite Scale's Reliability