Implements some item response models for multiple
ratings, including the hierarchical rater model,
conditional maximum likelihood estimation of linear
logistic partial credit model and a wrapper function
to the commercial FACETS program. See Robitzsch and
Steinfeld (2018) for a description of the functionality
of the package.
See Wang, Su & Qiu (2014;
If you use immer and have suggestions for improvement or have found bugs, please email me at [email protected].
The official version of immer is hosted on CRAN and may be found here.
The CRAN version can be installed from within R using:
utils::install.packages("immer")The version hosted here is the development version of immer.
The GitHub version can be installed using devtools as:
devtools::install_github("alexanderrobitzsch/immer")**** CHANGES IN immer PACKAGE VERSIONS ****
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Item Response Models for Multiple Ratings (immer) Alexander Robitzsch & Jan Steinfeld
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For development versions see https://sites.google.com/site/alexanderrobitzsch/software
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ADDED * included datasets of mammogram ratings data.immer11 (Zhang & Petersen, 2018, Statistics in Medicine) and figure skating ratings data.immer12 (Linacre, 2009)
DATA * included/modified datasets: data.immer11, data.immer12 EXAMP * included/modified examples: ---
ADDED * included joint maximum likelihood estimation function immer_jml() with epsilon-adjustment for bias correction NOTE * included argument 'file' in summary() method of immer_hrm() and immer_cml() ADDED * included composite conditional maximum likelihood estimation function immer_ccml() for partial credit model ADDED * included function immer_latent_regression() for estimating unidimensional latent regression models NOTE * added S3 method IRT.likelihood() for immer_jml() function NOTE * included data processing function immer_proc_data() NOTE * renamed functions immer_HRM() and simulate_HRM() to immer_hrm() and simulate_hrm() ADDED * included function immer_create_design_matrix_formula() for creating design matrices with an R formula FIXED * corrected bug in immer_hrm() when est.psi="r" was specified NOTE * display iteration about remaining computation time in immer_hrm() NOTE * included argument 'sigma_init' for providing initial values for sigma in immer_hrm() NOTE * better handling of numerical overflow in immer_hrm() NOTE * prevent alphanumeric order of rater labels in output of immer_hrm() ADDED * included Rcpp functions for faster computations in immer_cml() NOTE * renamed simulate_hrm() into immer_hrm_simulate()
DATA * included/modified datasets: data.ptam4, data.ptam4long, data.ptam4long EXAMP * included/modified examples: immer_jml (1), immer_ccml (1), immer_latent_regression (1), immer_proc_data (1)
ADDED * included registration of native routines and disabling symbol search according to CRAN policies
DATA * included/modified datasets: data.ptam1, data.ptam2, data.ptam3 EXAMP * included/modified examples: ---
NOTE * changed internal structure of Rcpp functions
DATA * included/modified datasets: --- EXAMP * included/modified examples: ---
FIXED * fixed a bug when saving sampled values (thanks to Giang Pham) FIXED * fixed a bug in relabeling rater identifiers (thanks to Giang Pham)
DATA * included/modified datasets: --- EXAMP * included/modified examples: ---
NOTE * include reviewer rating dataset 'data.immer09' (Kuhlisch et al., 2016) and standard setting ratings in 'data.immer10'
DATA * included/modified datasets: data.immer09, data.immer10 EXAMP * included/modified examples: ---
NOTE * added utility functions 'probs2logits' and 'logits2probs' for conversions of probabilities and logits of probabilities ADDED * included a latent class for agreement of two raters 'lc2_agreement' ADDED * added utility function 'immer_unique_patterns' for extraction of unique item response patterns ADDED * added descriptive function 'immer_agree2' for agreement among two raters (including Aicken's Alpha and Gwet's AC1)
DATA * included/modified datasets: data.immer08 EXAMP * included/modified examples: probs2logits (1), lc2_agreement (1), immer_unique_patterns (1), immer_agree2 (1)
ADDED * proposal distribution in Metropolis-Hastings steps are now only updated during the burn-in phase
DATA * included/modified datasets: --- EXAMP * included/modified examples: ---
ADDED * extended 'immer_reshape_wideformat' for reshaping of data frame with ratings
DATA * included/modified datasets: data.immer07 EXAMP * included/modified examples: immer_reshape_wideformat (2), immer_cml (4,5)
ADDED * included functions 'immer_HRM' and 'simulate_HRM'
for estimating and simulating the hierarchical
rater model (Patz et al., 2002)
ADDED * included utility function 'immer_reshape_wideformat'
for converting a rating dataset into a wideformat
ADDED * included 'immer_opcat' for estimating integer
item discriminations
ADDED * included linear logistic partial credit model in
estimated by conditional maximum likelihood in
'immer_cml'. This functions uses the
'psychotools::elementary_symmetric_function' function.
ADDED * included installation function 'immer_install'
for installing the facets program
ADDED * included wrapper function 'immer_FACETS' to the
FACETS program
DATA * included/modified datasets: data.immer01a, ..., data.immer06 EXAMP * included/modified examples: immer_HRM (1,2), immer_reshape_wideformat (1), immer_opcat (1), immer_cml (1,2,3), immer_FACETS (1), immer_install (1)