rcrtan (version 0.1.1)

phi_lambda: Calculate Brennan's (1984) estimate for phi lambda

Description

Calculate Brennan's (1984) estimate for phi lambda

Usage

phi_lambda(data, items, cut_score, total = NULL)

Arguments

data

A data frame of dichotomously scored test items

items

Raw column indices representing the test items or number of items on the test

cut_score

Cut-score of the test expressed as a proportion (e.g., 0.70)

total

Column name of raw test scores.

Examples

# NOT RUN {
phi_lambda(data = bh_item, items = 100, total = "Total", cut_score = 0.70)
# }