rcrtan (version 0.1.1)

if_fail: Calculate item facility for failing students

Description

Calculate item facility for failing students

Usage

if_fail(data, items, cut_score, scale = "raw")

Arguments

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'

Value

Item_facility_fail Item facility values for test items of of test takers who failed the test

Examples

# NOT RUN {
if_fail(bh_depend, 2:31, 21, scale = 'raw')
# }