Which is true about coefficient alpha?
A. It is a lower bound of a test of parallel items
B. It is an upper bound of a test of parallel items
C. It is an average of all combinations of split-half reliabilities
D. It is independent of inter-item correlations
Choose the correct answer from the options given below:
1
C only
2
A and B only
3
A and C only
4
C and D only