rpf (version 0.16)

rpf.drm: Create a dichotomous response model

Description

For discussion on the choice of priors see Cai, Yang, and Hansen (2011, p. 246).

Usage

rpf.drm(factors = 1, multidimensional = TRUE,
    poor = FALSE)

Arguments

factors

the number of factors

multidimensional

whether to use a multidimensional model. Defaults to TRUE.

poor

if TRUE, use the traditional parameterization of the 1d model instead of the slope-intercept parameterization

Value

• an item model

References

Cai, L., Yang, J. S., & Hansen, M. (2011). Generalized Full-Information Item Bifactor Analysis. Psychological Methods, 16(3), 221-248.