data.mixed1: Dataset with Mixed Dichotomous and Polytomous Item Responses

In sirt: Supplementary Item Response Theory Models

Dataset with Mixed Dichotomous and Polytomous Item Responses

Description

Dataset with mixed dichotomous and polytomous item responses.

Usage

data(data.mixed1)

Format

A data frame with 1000 observations on the following 37 variables.

'data.frame': 1000 obs. of 37 variables:
$ I01: num 1 1 1 1 1 1 1 0 1 1 ...
$ I02: num 1 1 1 1 1 1 1 1 0 1 ...
[...]
$ I36: num 1 1 1 1 0 0 0 0 1 1 ...
$ I37: num 0 1 1 1 0 1 0 0 1 1 ...

Examples

data(data.mixed1)
apply( data.mixed1, 2, max )
  ##   I01 I02 I03 I04 I05 I06 I07 I08 I09 I10 I11 I12 I13 I14 I15 I16
  ##     1   1   1   1   1   1   1   1   1   1   1   1   1   1   1   1
  ##   I17 I18 I19 I20 I21 I22 I23 I24 I25 I26 I27 I28 I29 I30 I31 I32
  ##     1   1   1   1   4   4   1   1   1   1   1   1   1   1   1   1
  ##   I33 I34 I35 I36 I37
  ##     1   1   1   1   1

sirt documentation built on May 29, 2024, 8:43 a.m.