R: Thurstonian CFA and Thurstonian IRT Modeling

# Thurstonian CFA and Thurstonian IRT Modeling

## Documentation for package ‘ThurMod’ version 1.1.20

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## Help Pages

blocksort | Sorts the blocks in ascending numbering
count.combn | Count paired comparisons
count.xblocks | Determine the number of extra blocks
designA | Create the Thurstonian design matrix for paired comparison and ranking data.
FC | Paired comparisons of $N=15$ items from one factor/trait (Thurstonian modeling)
FC12 | Paired comparisons of $N=12$ items from one factor/trait (Thurstonian modeling)
FC_raw | Raw ranking data of $N=15$ items from three factors/traits (Thurstonian modeling)
FC_scores | Scores of the data set 'FC' from Mplus.
fit.correct | Correct degree of freedom and fit indices in Thurstonian block models
fit.lavaan | Performs lavaan estimation of the given model.
fit.mplus | Performs Mplus estimation of the given model.
get.scores | Estimate factor scores based on Genuine Likelihood
get.xblocks | Get extra blocks in a Thurstonian design, that links all blocks.
get.xblocks.any | Get extra blocks in a Thurstonian design, that links as few blocks as possible.
i.name | Creates names for paired comparisons of a given design.
metablock | Find all general blocks
mod.matrices | Create model matrices for Thurstonian modeling
pair.combn | Determine all paired comparisons
rankA | Determine the rank of the design matrix defined by the blocks.
read.mplus | Reads results from Mplus output file.
recode | Recode variables.
redundancies | Determine the number of redundancies
reliabiltyFS | Calculate reliability estimate for factor scores.
sim.data | Create data based on Thurstonian model equations
syntax.lavaan | Create lavaan syntax for Thurstonian forced choice analysis
syntax.mplus | Create Mplus syntax for Thurstonian forced choice designs.