The Reliability Coefficient for a Measure Can Reflect: (Circle All

Multiple Choice

The reliability coefficient for a measure can reflect: (circle all that apply)

A) the extent that observed scores at Time 1 and Time 2 can be attributed to true score differences rather than random error
B) the correlation between Group 1's set of scores on a measure and Group 2's set of scores on the same measure
C) the correlation between Time 1 and Time 2 scores for the same people on the same measure
D) the (un) likelihood that observed differences between Time 1 and Time 2 scores are due to a regression artifact