If 20 of 40 in the upper group and 20 of 40 in the lower group choose the correct answer to a multiple-choice question w
Posted: Thu May 05, 2022 8:56 pm
If 20 of 40 in the upper group and 20 of 40 in the lower group
choose the correct answer to a multiple-choice question with five
possible responses, what would the index of discrimination be for
the item?
choose the correct answer to a multiple-choice question with five
possible responses, what would the index of discrimination be for
the item?