resubstitution: Resubstitution

In AnthonyRaborn/cvIRT: Cross Validation and Bootstrap Methods for IRT Model Selection

Description

Resubstitution

Usage

resubstitution(responseData, modelTypes, indicator = TRUE, ...,
  type = "person")

Arguments

responseData	The initial, full sample data as a matrix of item responses.
modelTypes	A character vector specifying the model types to be compared. Uses the 'TAM' package format, so must be one of the following: "1PL", "2PL", "PCM", "PCM2", "RSM", "GPCM", and "2PL.groups".
indicator	A logical value that controls the progress printing.
...	Further arguments to be passed to the 'tam' function.
type	A character vector specifying whether the validation treats the "person" or the "item" as the unit of observation. Default is "person".

Value

An object of class "cvIRT" with the following values:

data	The data used in the function.
testLik	A matrix of the loglikelihood values estimated on the responseData for each model.
nModelParams	A matrix of the number model parameters estimated on the data.
AIC	A matrix of the AIC value for each of the modelTypes.
AICc	A matrix of the AICc value for each of the modelTypes.
BIC	A matrix of the BIC value for each of the modelTypes.
-2 log-Likelihood Ratio Test	A list of the log-likelihood ratio test statistics, degrees of freedom, and p-values for each model comparison. If only one model is used, returns 'NULL'.
warnings	A character vector of any warnings incurred while the method runs.
time	A vector of the start and end times of the function.

Examples

#None.

AnthonyRaborn/cvIRT documentation built on Jan. 9, 2020, 3:26 a.m.