ggreliability {tabledown}

A Function for Creating Publication Quality Item Response Theory based reliability plot.

Description

This function will create publication worthy Item Response Theory based based reliability plot with standard error using ggplot2 from objects created from mirt pack. Using ggplot2 will enable the user to modify the Item plot.

Usage

ggreliability(dataframe, model)

Arguments

dataframe

your data.

model

A mirt package fitted object.

Value

A publication quality reliability plot (dashed line). Output object is a ggplot object.

Examples

data <- tabledown::Rotter[, 11:31]
model <- mirt::mirt(data, model = 1, itemtype = '2PL')

plot <- ggreliability(data, model)