A test was given to a group of sixth grade children.The score reliability of the test was found to be .70.Later the test was given to the seventh and eighth grades in the same school system and the results for the three grades were combined.What would you expect the reliability coefficient of the test to be?
A) Above .70
B) Below .70
C) Very close to .70
D) Impossible to determine from the information given.

Question

Quizplus · Accepted Answer

Combining results from different groups typically increases the variability in scores, which can lead to an increase in the reliability coefficient.

A Test Was Given to a Group of Sixth Grade