generate_discrimination: Generate Discrimination Parameters

In irtsim: Monte Carlo Simulation-Based Sample-Size Planning for Item Response Theory

Generate Discrimination Parameters

Description

Internal helper to generate discrimination (a) parameters under a specified distribution. Currently supports log-normal.

Usage

generate_discrimination(n_items, a_dist, a_mean, a_sd)

Arguments

n_items	Positive integer: the number of items (and thus the number of discrimination values to generate).
a_dist	Character string: the distribution name. Currently only "lnorm" is supported.
a_mean	Numeric: the mean parameter for the log-normal distribution (interpreted as meanlog).
a_sd	Numeric: the standard deviation parameter for the log-normal distribution (interpreted as sdlog).

Value

A numeric vector of length n_items containing discrimination values.

irtsim documentation built on April 24, 2026, 1:07 a.m.