sim_irt: Helper function to simulate IRT data

In masurp/ggmirt: Plotting functions to extend "mirt" for IRT analyses

Helper function to simulate IRT data

Description

Function to simulate data that can be used to fit IRT models.

Usage

sim_irt(
  n.obs = 100,
  n.items = 10,
  discrimination = 0,
  seed = NULL,
  cut = "random"
)

Arguments

n.obs	Number of observations that should be included in the data set
n.items	Number of items that should be simulated
discrimination	Standard deviation on the log scale
seed	Seed for the random number generation process
cut	Either "random" for a randomized transformation of the model probability matrix into the model 0-1 matrix or an integer value between 0 and 1.

Value

a tibble

Examples

library(ggmirt)

sim_irt(n.obs = 200, n.items = 10)

masurp/ggmirt documentation built on Oct. 14, 2023, 1:16 p.m.