R: Calculate cell central moments

rpf.1dim.moment {rpf} | R Documentation

## Calculate cell central moments

### Description

Popular central moments include 2 (variance) and 4 (kurtosis).

### Usage

    rpf.1dim.moment(spec, params, scores, m)

### Arguments

`spec` | list of item models
`params` | data frame of item parameters, 1 per row
`scores` | model derived person scores
`m` | which moment

### Value

moment matrix

[Package rpf version 0.59 Index]