plot.np.dich

Object of class <code><a rd-options="" href="/link/np.dich?package=sirt&version=3.9-4" data-mini-rdoc="sirt::np.dich">np.dich</a></code>

Estimated item difficulty (threshold)

infit

outfit

nsize

askplot

progress

bands

plot.b

shade

shadecol

&#8230;

This function plots nonparametric item response
functions estimated with <code>dich.np</code>.

Supplementary functions for item response models aiming
to complement existing R packages. The functionality includes among others
multidimensional compensatory and noncompensatory IRT models
(Reckase, 2009, <doi:10.1007/978-0-387-89976-3>),
MCMC for hierarchical IRT models and testlet models
(Fox, 2010, <doi:10.1007/978-1-4419-0742-4>),
NOHARM (McDonald, 1982, <doi:10.1177/014662168200600402>),
Rasch copula model (Braeken, 2011, <doi:10.1007/s11336-010-9190-4>;
Schroeders, Robitzsch & Schipolowski, 2014, <doi:10.1111/jedm.12054>),
faceted and hierarchical rater models (DeCarlo, Kim & Johnson, 2011,
<doi:10.1111/j.1745-3984.2011.00143.x>),
ordinal IRT model (ISOP; Scheiblechner, 1995, <doi:10.1007/BF02301417>),
DETECT statistic (Stout, Habing, Douglas & Kim, 1996,
<doi:10.1177/014662169602000403>), local structural equation modeling
(LSEM; Hildebrandt, Luedtke, Robitzsch, Sommer & Wilhelm, 2016,
<doi:10.1080/00273171.2016.1142856>).

Alexander Robitzsch

sirt

Supplementary Item Response Theory Models

plot.np.dich function

Object of class <code><a rd-options='' href='np.dich'>np.dich</a></code>

plot.np.dich: Plot Method for Object of Class `np.dich`

Description

Usage

Arguments

See Also