This dataset contains the responses of a sample of 1510 examinees to 12 binary items on Mathematics. It has been
extrapolated from a larger dataset collected in 1996 by the Educational Testing Service within the National Assessment of
Educational Progress (NAEP) project.
Usage
data(naep)
Format
A data frame with 1510 observations on the following 12 items:
Item1
round to thousand place
Item2
write fraction that represents shaded region
Item3
multiply two negative integers
Item4
reason about sample space (number correct)
Item5
find amount of restaurant tip
Item6
identify representative sample
Item7
read dials on a meter
Item8
find (x, y) solution of linear equation
Item9
translate words to symbols
Item10
find number of diagonals in polygon from a vertex
Item11
find perimeter (quadrilateral)
Item12
reason about betweenness
References
Bartolucci, F. and Forcina, A. (2005), Likelihood inference on the underlying structure of IRT models. Psychometrika,
70, 31-43.
Bartolucci, F. (2007), A class of multidimensional IRT models for testing unidimensionality and clustering items.
Psychometrika, 72, 141-157.
Examples
data(naep)
## maybe str(naep)
str(naep)
Results
R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)
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Type 'demo()' for some demos, 'help()' for on-line help, or
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> library(MultiLCIRT)
Loading required package: MASS
Loading required package: limSolve
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/MultiLCIRT/naep.Rd_%03d_medium.png", width=480, height=480)
> ### Name: naep
> ### Title: NAEP dataset
> ### Aliases: naep
> ### Keywords: datasets education
>
> ### ** Examples
>
> data(naep)
> ## maybe str(naep)
> str(naep)
'data.frame': 1510 obs. of 12 variables:
$ Item1 : int 1 0 1 1 0 1 1 1 1 0 ...
$ Item2 : int 1 1 1 1 0 1 1 0 1 1 ...
$ Item3 : int 0 1 1 1 0 0 1 1 1 0 ...
$ Item4 : int 1 1 1 1 1 0 1 1 1 1 ...
$ Item5 : int 0 1 1 0 0 0 0 1 1 1 ...
$ Item6 : int 0 0 0 0 1 1 0 1 0 1 ...
$ Item7 : int 0 0 0 0 1 1 1 1 0 0 ...
$ Item8 : int 0 0 1 0 0 1 0 1 1 1 ...
$ Item9 : int 0 1 0 1 0 1 0 1 1 1 ...
$ Item10: int 1 1 1 1 1 1 1 1 1 1 ...
$ Item11: int 0 1 0 0 0 0 0 0 0 1 ...
$ Item12: int 0 0 0 0 0 0 0 0 0 1 ...
>
>
>
>
>
> dev.off()
null device
1
>