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autoRasch (version 0.2.2)

check.unidim: Unidimensionality Check

Description

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

Usage

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

Value

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

Arguments

x

The dataset of responses.

is.polychor

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