seqIRT: Sequential MIRT Estimation

In davidaarmstrong/seqirt: Sequential Multi-dimensional Item Response Theory

Description

Estimates a multidimensional IRT model by sequentially identifying variables that correspond with each dimension. Once identified, the models are re-estimated with only the relevant variables.

Usage

seqIRT(.data, Dim, thresh = 0.35, ...)

Arguments

.data	Data frame with only variables that get passed to the IRT function.
Dim	Number of dimensions to estimate
thresh	Threshold for the K-means clustering in the final stage. If all PRE values are above thresh, then no clustering will be done and all and all remaining variables will be retained.
...	Arguments to be passed down to the binIRT function including .data, .starts and .priors.

Value

A list with the output from each final binIRT model.

davidaarmstrong/seqirt documentation built on Oct. 13, 2020, 8:36 p.m.