For a Given Item, When the Performances of Those Whose

Multiple Choice

For a given item, when the performances of those whose overall scores put them among the highest third of the group are compared with those who scored among the lowest third of the group, the resulting difference is called the

A) discrimination index (DI) .
B) item difficulty level (IDL)
C) item response test (IRT)
D) discrimination of performance evaluation (DOPE)