What is distractor analysis?
In respect to this, what is a distractor on a test?
Distractors are the incorrect answers in a multiple choice question. Choosing your distractors poorly can make your multiple choice questions much easier or harder than you may have intended.
Beside above, how do you calculate distractor efficiency? Distractor Efficiency and Its Relation With Bloom's Taxonomy In order not to penalize this type of item, the expected percentage of choices was calculated assuming that the choices were uniformly distributed: q = (100 -P-value)/k, where k is the number of incorrect alternatives.
In respect to this, what is distractor efficiency?
Distractor Efficiency and Its Relation With Bloom's Taxonomy A functional distractor was defined as one that exhibited negative discrimination and was selected by at least 5% of the participants.
What is discrimination index and its formula?
The Discrimination Index (D) is computed from equal-sized high and low scoring groups on the test. Subtract the number of successes by the low group on the item from the number of successes by the high group, and divide this difference by the size of a group. The range of this index is +1 to -1.