Description Usage Arguments Value References
This function estimates a four-dimensional latent regression item response model (first dimension: PIAAC 2012 literacy, second dimension: PIAAC 2012 numeracy, third dimension: PIAAC-L 2015 literacy, fourth dimension: PIAAC-L 2015 numeracy) for binary item response data considering partially missing covariate data. For more detailed information on the statistical model and the estimation algorithm, see the PIAAC-L technical report on scaling (Carstensen, Gaasch & Rothaug, 2017).
1 | litnum1215(path, X = NULL, nopvs = 10, itermcmc = 22000, burnin = 2000)
|
path |
full path of the folder containing the data files ZA5845 and ZA5989_Persons_15 in Stata format. |
X |
data frame containing the sequential ID (named |
nopvs |
number of plausible values to draw for each respondent. |
itermcmc |
number of MCMC iterations. |
burnin |
number of burnin iterations. |
list with nopvs
elements, each containing a data frame of the sequential ID, plausible values for
each dimension and, if specified, imputed versions of X
. Resulting plausible values are transformed onto the PIAAC 2012 scale (weighted means and standard deviations based on the SUF). Additionally each list element is saved as a
Stata file in the folder specified by path
.
Carstensen, C. H., Gaasch, J.-C., & Rothaug, E. (2017). Scaling PIAAC-L cognitive data: technical report. Manuscript in preparation.
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