The goal of edmdata
R data package is to provide a set of assessment data sets for psychometric modeling.
The edmdata
package is available on both CRAN and GitHub. The CRAN version is considered stable while the GitHub version is in a state of development and may break.
You can install the stable version of the edmdata
package with:
install.packages("edmdata")
For the development version, you can install the edmdata
package from GitHub with:
# install.packages("remotes")
remotes::install_github("tmsalab/edmdata")
There are two ways to access the data contained within this package.
The first is to load the package itself and type the name of a data set. This approach takes advantage of R’s lazy loading mechanism, which avoids loading the data until it is used in R session. For details on how lazy loading works, please see Section 1.17: Lazy Loading of the R Internals manual.
# Load the `edmdata` package
library("edmdata")
# See the first 10 observations of the `items_revised_psvtr` dataset
head(items_revised_psvtr)
# View the help documentation for `items_revised_psvtr`
?items_revised_psvtr
The second approach is to use the data()
command to load data on the fly without loading the package. After using data()
, the data set will be available to use under the given name.
items_ecpe
: N = 2922 subject responses to J = 28 items.qmatrix_ecpe
: J = 28 items and K = 3 traits.items_fractions
: N = 536 subject responses to J = 20 items.qmatrix_fractions
: J = 536 items and K = 20 traits.items_probability_part_one_full
: N = 504 subject responses to J = 12 items.items_probability_part_one_reduced
: N = 431 subject responses to J = 12 items.qmatrix_probability_part_one
: J = 12 items and K = 4 traits.items_revised_psvtr
: N = 516 subject responses to J = 30 items.items_ordered_eclsk_atl
: N = 13354 subject responses to J = 12 items.items_ordered_timss15_background
: N = 9672 subject responses to J = 16 items.items_ordered_pswc_hw
: N = 288 subject responses to J = 29 items.items_ordered_pisa12_us_vignette
: N = 3075 subject responses to J = 12 items.items_pisa12_us_math
: N = 4978 subject responses to J = 76 items.items_spm_ls
: N = 499 subject responses to J = 12 items.items_hcp_penn_matrix
: N = 1201 subject responses to J = 24 items.items_hcp_penn_matrix_missing
: N = 1201 subject responses with missing data indicators to J = 24 items.items_matrix_reasoning
: N = 400 subject responses to J = 25 items.items_taylor_manifest_anxiety_scale
: N = 4468 subject responses to J = 50 items.items_narcissistic_personality_inventory
: N = 11243 subject responses to J = 40 items.qmatrix_oracle_k2_j12
: 12 items and 2 traits.qmatrix_oracle_k3_j20
: 20 items and 3 traits.qmatrix_oracle_k4_j20
: 20 items and 4 traits.qmatrix_oracle_k5_j30
: 30 items and 5 traits.strategy_oracle_k3_j20_s2
: 20 items, 3 traits, and 2 strategies.strategy_oracle_k3_j30_s2
: 30 items, 3 traits, and 2 strategies.strategy_oracle_k3_j40_s2
: 40 items, 3 traits, and 2 strategies.strategy_oracle_k3_j50_s2
: 50 items, 3 traits, and 2 strategies.strategy_oracle_k4_j20_s2
: 20 items, 4 traits, and 2 strategies.strategy_oracle_k4_j30_s2
: 30 items, 4 traits, and 2 strategies.strategy_oracle_k4_j40_s2
: 40 items, 4 traits, and 2 strategies.strategy_oracle_k4_j50_s2
: 50 items, 4 traits, and 2 strategies.Want to see how each data set was imported? Check out the data-raw
folder!
edmdata
package
To ensure future development of the package, please cite edmdata
package if used during an analysis or simulation study. Citation information for the package may be acquired by using in R:
citation("edmdata")