immer
Item Response Models for Multiple Ratings
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;
Item Response Models for Multiple Ratings
If you use immer and have suggestions for improvement or have found bugs, please email me at [email protected].
CRAN version
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")GitHub version
The version hosted here is the development version of immer.
The GitHub version can be installed using devtools as:
devtools::install_github("alexanderrobitzsch/immer")News
**** CHANGES IN immer PACKAGE VERSIONS ****
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Item Response Models for Multiple Ratings (immer) Alexander Robitzsch & Jan Steinfeld
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mailto:
- For reporting a bug, please provide always a reproducible R script and (if necessary) a corresponding dataset.
URL:
For development versions see https://sites.google.com/site/alexanderrobitzsch/software
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VERSIONS immer 1.0 | 2018-04-24 | Last: immer 1.0-138
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)
VERSIONS immer 0.8 | 2017-04-27 | Last: immer 0.8-5
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: ---
Changes in Version 0.7 (2017-01-18) -- CRAN 0.7-0
NOTE * changed internal structure of Rcpp functions
DATA * included/modified datasets: --- EXAMP * included/modified examples: ---
Changes in Version 0.6 (2016-10-28) -- CRAN 0.6-0
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: ---
Changes in Version 0.5 (2016-05-31) -- CRAN 0.5-0
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: ---
Changes in Version 0.4 (2016-03-07) -- CRAN 0.4-0
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)
Changes in Version 0.3 (2016-01-22) -- CRAN 0.3-0
ADDED * proposal distribution in Metropolis-Hastings steps are now only updated during the burn-in phase
DATA * included/modified datasets: --- EXAMP * included/modified examples: ---
Changes in Version 0.2 (2015-11-04) -- CRAN 0.2-0
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)
Changes in Version 0.1 (2015-09-13) -- CRAN 0.1-1
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)