In the above context, which one of the following correlation should be computed to obtain item-remainder correlations ?
A. Point biserial correlation
B. Phi-coefficient
C. Rank difference correlation
D. Tetrachoric correlation
Answer:A
In the above context, which one of the following correlation should be computed to obtain item-remainder correlations ?
A. Point biserial correlation B. Phi-coefficient C. Rank difference correlation D. Tetrachoric correlation