irt_gen: Simulate item responses from an item response model

In tmatta/lsasim: Functions to Facilitate the Simulation of Large Scale Assessment Data

Simulate item responses from an item response model

Description

Creates a data frame of item parameters.

Usage

irt_gen(theta, a_par = 1, b_par, c_par = 0, D = 1)

Arguments

theta	numeric ability estimate.
a_par	numeric discrimination parameter.
b_par	numeric or vector of numerics difficulty parameter(s).
c_par	numeric guessing parameter.
D	numeric parameter to specify logisitic (1) or normal (1.7).

Examples

irt_gen(theta = 0.2, b_par = 0.6)
irt_gen(theta = 0.2, a_par = 1.15, b_par = 0.6)
irt_gen(theta = 0.2, a_par = 1.15, b_par = 0.6, c_par = 0.2)

tmatta/lsasim documentation built on Aug. 25, 2023, 5:50 p.m.