rpf.mean.info

spec

param

the step size for numerical integration (optional)

grain

This is a point estimate of the mean difficulty of items that do
not offer easily interpretable parameters such as the Generalized
PCM. Since the information curve may not be unimodal, this
function integrates across the latent space.

The purpose of this package is to factor out logic and
        math common to Item Response Theory fitting, diagnostics, and
        analysis. It is envisioned as core support code suitable for
        more specialized IRT packages to build upon. A version 1.0 will
        offer optimized, low-level functions to map parameters to
        response probabilities for a wide variety of dichotomous and
        polytomous item models.

rpf.mean.info: Find the point where an item provides mean maximum information

Description

Usage

Arguments

Details