check.unidim {autoRasch}

Unidimensionality Check

Description

This function checks the unidimensionality status using the confirmatory factor analysis.

Usage

check.unidim(x, is.polychor = TRUE)

Arguments

x

The dataset of responses.

is.polychor

A boolean parameter to set whether the dataset is categorical or not.

Value

A list of the CFA output and the some of the goodness-of-fit indices (i.e., cfi, tli, rmsea, and srmr)