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sirt (version 0.34-36)

data.ml: Multilevel Datasets

Description

Datasets for conducting multilevel IRT analysis. This dataset is used in the examples of the function mcmc.2pno.ml.

Usage

data(data.ml1)
data(data.ml2)

Arguments

format

data.ml1 A data frame with 2000 student observations in 100 classes on 17 variables. The first variable group contains the class identifier. The remaining 16 variables are dichotomous test items. data.ml2 A data frame with 2000 student observations in 100 classes on 6 variables. The first variable group contains the class identifier. The remaining 5 variables are polytomous test items.