Description Usage Arguments Value Examples
Calculate criterion-referenced item discrimination indices
1 | crt_iteman(data, items, cut_score, scale = "raw")
|
data |
A data frame of dichotomously scored test times |
items |
Raw column indices representing the test items |
cut_score |
A raw or percentage cut-score |
scale |
A character vector indicating whether the cut-score is 'raw' (default) or 'percent' |
if_pass
contains item facility values for test items for students who
passed the test
if_fail
contains item facility values for test items for students who did not pass the test
if_total
contains item facility values for test items
b_index
contains b-index values for items on the test
agree_stat
contains agreement statistic values for items on the test
item_phi
contains item phi values for items on the test
1 | crt_iteman(bh_depend, 2:31, 21, scale = 'raw')
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