data.pisaPars: Item Parameters from Two PISA Studies
In sirt: Supplementary Item Response Theory Models
data.pisaPars R Documentation
Item Parameters from Two PISA Studies
Description
This data frame contains item parameters from two PISA studies.
Because the Rasch model is used, only item difficulties are considered.
Usage
data(data.pisaPars)
Format
A data frame with 25 observations on the following 4 variables.
itemItem names
testletItems are arranged in corresponding testlets. These
names are located in this column.
study1Item difficulties of study 1
study2Item difficulties of study 2
sirt documentation built on May 29, 2024, 8:43 a.m.
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| data.pisaPars | R Documentation |
Item Parameters from Two PISA Studies
Description
This data frame contains item parameters from two PISA studies. Because the Rasch model is used, only item difficulties are considered.
Usage
data(data.pisaPars)
Format
A data frame with 25 observations on the following 4 variables.
itemItem names
testletItems are arranged in corresponding testlets. These names are located in this column.
study1Item difficulties of study 1
study2Item difficulties of study 2
R Package Documentation
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We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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