Predictor* | Difficulty Index | Discrimination Index | Point biserial | |||
---|---|---|---|---|---|---|
Coefficient | p-value | Coefficient | p-value | Coefficient | p-value | |
Model 1$# | F(2,170) = .78 | .46 | F(2,170) = 6.84 | .001 | F(2,170) = 15.192 | <.001 |
Case/Noncase based items | −.04 | .26 | .08 | .019 | .01 | .67 |
Open-ended (essay)/MCQs items | −.01 | .89 | −.10 | .001 | −.14 | <.001 |
Model 2@# | F(2,72) = .76 | .47 | F(2,72) = .40 | .67 | F(2,72) = .18 | .83 |
Case/Noncase based items | −.02 | .77 | .04 | .39 | −.01 | .79 |
Number of Choices | −.03 | .23 | .01 | .78 | .01 | .60 |