npar

object

Calculate the number of parameters for GDINA estimates.
Returned the total number of parameters, the number of item parameters and
the number of population parameters.
See <code><a rd-options="" href="/link/GDINA?package=GDINA&version=1.4.2" data-mini-rdoc="GDINA::GDINA">GDINA</a></code> for examples.

A set of psychometric tools for cognitive diagnostic analyses for both dichotomous and polytomous responses. Various cognitive diagnosis models can be estimated, include the generalized deterministic inputs, noisy and gate (G-DINA) model by de la Torre (2011) <DOI:10.1007/s11336-011-9207-7>, the sequential G-DINA model by Ma and de la Torre (2016) <DOI:10.1111/bmsp.12070>, and many other models they subsume. Joint attribute distribution can be saturated, higher-order or structured. Q-matrix validation, item and model fit statistics, model comparison at test and item level and differential item functioning can also be conducted. A graphical user interface is also provided.

Wenchao Ma

GDINA

The Generalized DINA Model Framework

Jimmy de la Torre

npar function

Calculate the number of parameters for GDINA estimates.
Returned the total number of parameters, the number of item parameters and
the number of population parameters.
See <code><a rd-options='' href='GDINA'>GDINA</a></code> for examples.

npar: Calculate the number of parameters

Description

Usage

Arguments