The correlation between Time 1 and Time 2 assessments of the same measure was r = 0.90. (a) Explain what this correlation has to do with reliability. (b) What information does this number tell us about participants' "true scores" on that measure? (c) How much variation in scores can be attributed to true score differences, and explain why you can draw this conclusion.

Question

Quizplus · Accepted Answer

The Answer of The correlation between Time 1 and Time 2 assessments of the same measure was r = 0.90. (a) Explain what this correlation has to do with reliability. (b) What information does this number tell us about participants' "true scores" on that measure? (c) How much variation in scores can be attributed to true score differences, and explain why you can draw this conclusion.

The Correlation Between Time 1 and Time 2 Assessments of the Same