Other packages > Find by keyword >

Explore topics

By keyword . Oldest R packages . Newest R packages . Top downloaded R packages . Datasets . Archived R packages . Top downloaded last week . Top downloaded yesterday

TAM

Star Watch Copy Code

Test Analysis Modules

View on CRAN: Click here

Download and install TAM package within the R console
Install from CRAN:

 install.packages("TAM")

Install from Github:

 library("remotes")

                        install_github("cran/TAM")

Install by package version:

 library("remotes")

                        install_version("TAM", "4.3-25")

Attach the package and use:

 library("TAM")

Maintained by
Alexander Robitzsch
[Scholar Profile | Author Map]

All associated links for this package

First Published: 2013-07-01

Latest Update: 2025-09-03

Description:

Includes marginal maximum likelihood estimation and joint maximum likelihood estimation for unidimensional and multidimensional item response models. The package functionality covers the Rasch model, 2PL model, 3PL model, generalized partial credit model, multi-faceted Rasch model, nominal item response model, structured latent class model, mixture distribution IRT models, and located latent class models. Latent regression models and plausible value imputation are also supported. For details see Adams, Wilson and Wang, 1997 <doi:10.1177/0146621697211001>, Adams, Wilson and Wu, 1997 <doi:10.3102/10769986022001047>, Formann, 1982 <doi:10.1002/bimj.4710240209>, Formann, 1992 <doi:10.1080/01621459.1992.10475229>.

How to cite:

Alexander Robitzsch (2013). TAM: Test Analysis Modules. R package version 4.3-25, https://cran.r-project.org/web/packages/TAM. Accessed 06 Mar. 2026.

Previous versions and publish date:

0.04-43 (2013-07-01 21:23), 0.5-21 (2013-07-29 01:14), 0.6-26 (2013-08-28 16:41), 0.7-35 (2013-09-15 18:26), 0.8-19 (2013-10-03 09:42), 0.9-9 (2013-10-13 15:02), 0.99-7 (2013-11-02 17:51), 1.0-0 (2014-01-01 20:02), 1.0-1 (2014-02-02 19:01), 1.0-2.1 (2014-05-02 11:58), 1.0-2 (2014-04-02 11:29), 1.0-3.18-1 (2014-09-08 19:20), 1.0-3 (2014-06-27 13:56), 1.1 (2014-10-19 22:23), 1.2 (2014-11-22 19:10), 1.3 (2015-01-06 18:33), 1.4-1 (2015-01-16 06:42), 1.5-2 (2015-02-24 09:42), 1.6-0 (2015-04-03 13:34), 1.7-1 (2015-06-05 22:30), 1.8-0 (2015-06-27 00:19), 1.9-0 (2015-06-30 14:46), 1.10-0 (2015-07-25 18:07), 1.11-0 (2015-08-11 15:18), 1.12-0 (2015-08-27 14:14), 1.13-0 (2015-08-29 23:22), 1.14-0 (2015-10-15 15:45), 1.15-0 (2015-12-16 12:23), 1.16-0 (2016-02-01 10:39), 1.17-0 (2016-03-12 00:19), 1.99-6 (2016-04-16 04:40), 1.995-0 (2016-05-31 15:59), 1.99992-0 (2017-01-23 13:49), 1.99993-0 (2017-02-06 11:14), 1.99999-31 (2017-03-02 14:29), 2.0-37 (2017-04-12 17:36), 2.1-43 (2017-05-11 08:16), 2.2-49 (2017-06-17 17:53), 2.3-18 (2017-06-25 17:54), 2.4-9 (2017-07-01 00:19), 2.5-14 (2017-08-08 17:55), 2.6-2 (2017-08-13 07:32), 2.7-56 (2017-10-19 21:53), 2.8-21 (2017-11-16 16:04), 2.9-35 (2018-02-26 12:38), 2.10-24 (2018-03-29 16:09), 2.11-93 (2018-05-02 11:44), 2.12-18 (2018-05-25 13:47), 2.13-15 (2018-09-30 15:20), 3.0-21 (2018-12-10 18:00), 3.1-45 (2019-03-18 19:13), 3.2-24 (2019-07-04 15:40), 3.3-10 (2019-08-23 14:20), 3.4-26 (2020-03-10 14:00), 3.5-19 (2020-05-06 08:30), 3.6-45 (2021-04-22 15:40), 3.7-16 (2021-06-25 13:10), 4.0-16 (2022-05-15 01:20), 4.1-4 (2022-08-28 20:40), 4.2-21 (2024-02-19 19:40)

Other packages that cited TAM R package

View TAM citation profile

Other R packages that TAM depends, imports, suggests or enhances

View TAM dependency map

Complete documentation for TAM

View documentation PDF

Functions, R codes and Examples using the TAM R package

Some associated functions: DescribeBy . IRT.WrightMap . IRT.cv . IRT.data.tam . IRT.drawPV . IRT.expectedCounts.tam . IRT.factor.scores.tam . IRT.frequencies.tam . IRT.informationCurves . IRT.irfprob.tam . IRT.itemfit . IRT.likelihood.tam . IRT.linearCFA . IRT.residuals . IRT.simulate . IRT.threshold . IRT.truescore . IRTLikelihood.cfa . IRTLikelihood.ctt . Scale . TAM-defunct . TAM-package . TAM-utilities . WLErel . anova.tam . cfa.extract.itempars . data.cqc . data.ctest . data.examples . data.fims.Aus.Jpn . data.geiser . data.gpcm . data.janssen . data.mc . data.numeracy . data.sim.mfr . data.sim.rasch . data.timssAusTwn . designMatrices . doparse . lavaanify.IRT . msq.itemfit . plot.tam . plotDevianceTAM . predict . tam.ctt . tam.fa . tam.fit . tam.jml . tam.latreg . tam.linking . tam.mml.3pl . tam.mml . tam.modelfit . tam.np . tam.personfit . tam.pv . tam.se . tam.threshold . tam.wle . tam_NA_pattern . tam_downcode . tam_irf_3pl . tamaan . tamaanify . tampv2datalist . weighted_Stats .
Some associated R codes: DescribeBy.R . EAPrel.R . IRT.RISE.R . IRT.WrightMap.R . IRT.cv.R . IRT.cv.tam.np.R . IRT.data.tam.R . IRT.drawPV.R . IRT.expectedCounts.tam.R . IRT.factor.scores.tam.R . IRT.frequencies.tam.R . IRT.informationCurve.R . IRT.irfprob.tam.R . IRT.itemfit.R . IRT.likelihood.TAM.R . IRT.linearCFA.R . IRT.modelfit.tam.R . IRT.residuals.R . IRT.simulate.R . IRT.threshold.R . IRT.truescore.R . IRTLikelihood.cfa.R . IRTLikelihood.ctt.R . RcppExports.R . Scale.R . WLErel.R . WLErel_exclude_missings.R . add.colnames.resp.R . add.lead.R . anova.tam.R . cfa.extract.itempars.R . change.grep.lavpartable.R . designMatrices.R . designMatrices.mfr.R . designMatrices.mfr2.R . designMatrices.mfr_aux.R . designMatrices.mfr_aux2.R . designMatrices_aux.R . designMatrices_aux2.R . doparse.R . extend.label.group.R . lavaanify.IRT.R . lavaanify.grep.MEASERR.R . lavaanify.grep.nonlinear.R . lavpartable.grep.underbrace.R . lavpartable2lavsyntax.R . logLik.tam.jml.R . logLik_tam.R . msq.itemfit.R . msq.itemfit.R.R . msq.itemfitWLE.R . plot.IRT.informationCurves.R . plot.ctt.R . plot.tam.R . plot.tam.pv.mcmc.R . plotDevianceTAM.R . plot_tam_grouped_wle.R . predict.tam.R . print.tam.R . print.tam.linking.R . print.tam.wle.R . print.tam_linking_2studies.R . prior_list_include.R . remove.duplicated.variances.lavsyn.R . require_namespace_msg.R . split.syn.string.R . summary.msq.itemfit.R . summary.msq.itemfitWLE.R . summary.tam.Q3.R . summary.tam.R . summary.tam.fit.R . summary.tam.jml.R . summary.tam.linking.R . summary.tam.mml.3pl.R . summary.tam.modelfit.R . summary.tam.np.R . summary.tam.pv.mcmc.R . summary.tam.wle.R . summary.tam_linking_2studies.R . summary.tamaan.R . summary_tam_print_latreg_stand.R . summary_tamaan_3pl_class_item_average.R . summary_tamaan_3pl_discrete_distribution.R . summary_tamaan_3pl_distr_mixture.R . summary_tamaan_3pl_intro.R . summary_tamaan_3pl_lcaprobs.R . summary_tamaan_3pl_loclca.R . summary_tamaan_item_parameters.R . summary_tamaan_item_parameters_mixture.R . summary_tamaan_normal_skillspace.R . tam.Q3.R . tam.R . tam.cb.R . tam.ctt.R . tam.ctt2.R . tam.ctt3.R . tam.fa.R . tam.fit.R . tam.jml.R . tam.jml.fit.R . tam.jml2.R . tam.latreg.R . tam.linking.R . tam.mml.2pl.R . tam.mml.3pl.R . tam.mml.R . tam.mml.mfr.R . tam.mml.wle.R . tam.mml.wle2.R . tam.modelfit.IRT.R . tam.modelfit.R . tam.modelfit.args.R . tam.np.R . tam.personfit.R . tam.pv.R . tam.pv.mcmc.R . tam.q3.aux.R . tam.se.R . tam.threshold.R . tam.wle.R . tam_01_pattern.R . tam_AXsi_compute.R . tam_AXsi_fit.R . tam_A_matrix2.R . tam_NA_pattern.R . tam_Rhat_3splits.R . tam_accelerate_parameters.R . tam_acceleration_inits.R . tam_acceleration_inits_create_list.R . tam_acf_matrix.R . tam_aggregate.R . tam_aggregate_derivative_information.R . tam_anticomb2.R . tam_args_CALL_search.R . tam_args_replace_value.R . tam_assign_list_elements.R . tam_bayesian_bootstrap.R . tam_calc_counts.R . tam_calc_exp.R . tam_calc_posterior.R . tam_calc_prob_helper_subtract_max.R . tam_cat_flush_console.R . tam_colSums.R . tam_compute_disp_progress.R . tam_cor_wt.R . tam_cov_wt.R . tam_csink.R . tam_ctt_wrapper.R . tam_deviance_history_init.R . tam_difference_quotient.R . tam_dmvnorm.R . tam_dnorm_discrete.R . tam_downcode.R . tam_dtnorm.R . tam_evaluate_prior.R . tam_exp_overflow.R . tam_fa_reliability_measures.R . tam_fa_reliability_nonlinearSEM.R . tam_find_root.R . tam_fisherz.R . tam_generate_B_fixed_estimated.R . tam_generate_xsi_fixed_estimated.R . tam_ghp_number_informations.R . tam_ginv.R . tam_ginv_scaled.R . tam_group_lasso_norm.R . tam_import_MASS_ginv.R . tam_import_mvtnorm_dmvnorm.R . tam_import_mvtnorm_pmvnorm.R . tam_import_sfsmisc_QUnif.R . tam_in_names_list.R . tam_include_arguments_in_list.R . tam_interval_index.R . tam_irf_3pl.R . tam_irt_parameterization.R . tam_itempartable.R . tam_jml_calc_xsi_compute_AXsi.R . tam_jml_compute_Axsi.R . tam_jml_itempartable.R . tam_jml_proc_abilities.R . tam_jml_version1.R . tam_jml_version1_calc_xsi.R . tam_jml_version2.R . tam_jml_version2_calc_xsi.R . tam_jml_wle.R . tam_latent_regression_standardized_solution.R . tam_latreg_ic.R . tam_latreg_se_quick.R . tam_latreg_se_quick_likelihood.R . tam_lavaanify.R . tam_linking_2studies.R . tam_linking_2studies_create_M_SD.R . tam_linking_2studies_create_M_SD_rownames.R . tam_linking_chain.R . tam_linking_extract_list.R . tam_linking_extract_parameters.R . tam_linking_extract_parameters_trait_distribution.R . tam_linking_function_haebara_loss.R . tam_linking_include_list.R . tam_linking_irf_discrepancy.R . tam_linking_joint.R . tam_linking_joint_calc_probs.R . tam_linking_output_summary.R . tam_linking_parameters_select_common_items.R . tam_linking_transform_item_parameters.R . tam_matrix2.R . tam_max_abs.R . tam_max_abs_list.R . tam_max_categories.R . tam_mml_2pl_mstep_item_slopes_suffstat_R.R . tam_mml_2pl_mstep_slope.R . tam_mml_2pl_sufficient_statistics_item_slope.R . tam_mml_3pl_calc_exp.R . tam_mml_3pl_calc_ll.R . tam_mml_3pl_calc_ll_est_guessing.R . tam_mml_3pl_calc_prob.R . tam_mml_3pl_calc_total_ll.R . tam_mml_3pl_computeB.R . tam_mml_3pl_compute_Fdes.R . tam_mml_3pl_create_E.R . tam_mml_3pl_create_notA.R . tam_mml_3pl_deviance.R . tam_mml_3pl_distributionmoments.R . tam_mml_3pl_expected_counts.R . tam_mml_3pl_ic.R . tam_mml_3pl_inits_group.R . tam_mml_3pl_itempartable.R . tam_mml_3pl_mstep_item_guessing.R . tam_mml_3pl_mstep_item_intercepts.R . tam_mml_3pl_mstep_item_slopes.R . tam_mml_3pl_mstep_item_slopes_gammaslope_center.R . tam_mml_3pl_mstep_regression.R . tam_mml_3pl_skillspace.R . tam_mml_3pl_stud_prior_discrete.R . tam_mml_3pl_variance_fixed.R . tam_mml_3pl_vec_add_increment.R . tam_mml_calc_prob.R . tam_mml_calc_prob_R.R . tam_mml_compute_AXsi.R . tam_mml_compute_deviance.R . tam_mml_constraint_check.R . tam_mml_control_list_define.R . tam_mml_create_nodes.R . tam_mml_create_nodes_multidim_nodes.R . tam_mml_ic.R . tam_mml_ic_criteria.R . tam_mml_include_NA_AXsi.R . tam_mml_inits_beta.R . tam_mml_inits_groups.R . tam_mml_inits_variance.R . tam_mml_inits_xsi.R . tam_mml_mfr_collect_xsi_parameters.R . tam_mml_mfr_dataprep.R . tam_mml_mfr_inits_beta.R . tam_mml_mfr_inits_xsi.R . tam_mml_mfr_proc_compute_maxKi.R . tam_mml_mfr_proc_create_design_matrices.R . tam_mml_mfr_proc_delete_missing_items.R . tam_mml_mfr_proc_multiple_person_ids.R . tam_mml_mfr_proc_response_indicators.R . tam_mml_mfr_proc_xsi_setnull.R . tam_mml_mstep_intercept.R . tam_mml_mstep_intercept_optim.R . tam_mml_mstep_intercept_quasi_newton_R.R . tam_mml_mstep_regression.R . tam_mml_mstep_xsi.R . tam_mml_person_EAP.R . tam_mml_person_EAP_rel.R . tam_mml_person_SD_EAP.R . tam_mml_person_maxscore.R . tam_mml_person_posterior.R . tam_mml_proc_est_xsi_index.R . tam_mml_proc_prior_list_xsi.R . tam_mml_proc_response_indicators.R . tam_mml_proc_unidim_simplify.R . tam_mml_proc_xsi_parameter_index_A.R . tam_mml_progress_em.R . tam_mml_progress_em0.R . tam_mml_progress_proc_nodes.R . tam_mml_se_AXsi.R . tam_mml_se_quick.R . tam_mml_se_quick_compute_log_likelihood.R . tam_mml_se_quick_difference_quotient.R . tam_mml_se_quick_likelihood.R . tam_mml_se_quick_modify_parameter_vec.R . tam_mml_se_quick_verbose.R . tam_mml_sufficient_statistics.R . tam_mml_sufficient_statistics_R.R . tam_mml_update_stochastic_nodes.R . tam_mml_warning_message_multiple_group_models.R . tam_mml_wle_check_identifiability.R . tam_mml_wle_postproc.R . tam_mml_wle_proc_input_data.R . tam_mml_wle_pweights.R . tam_mml_wle_theta_inits.R . tam_mml_wle_update_theta.R . tam_model_implied_means.R . tam_normalize_matrix_rows.R . tam_normalize_vector.R . tam_np_2pl_calc_probs.R . tam_np_2pl_grad_fn.R . tam_np_2pl_hess_fn.R . tam_np_2pl_irf_probs.R . tam_np_2pl_optim_fn.R . tam_np_2pl_optim_fn_grad_hess.R . tam_np_create_spline_basis.R . tam_np_create_spline_basis_bsplines.R . tam_np_create_spline_basis_hermite.R . tam_np_group_lasso_update.R . tam_np_information_criteria.R . tam_np_inits.R . tam_np_mstep_items.R . tam_np_mstep_trait_distribution.R . tam_np_optim_ridge_penalty.R . tam_orthonormalize_design_matrix.R . tam_osink.R . tam_outer.R . tam_packageinfo.R . tam_parameter_change.R . tam_print_call.R . tam_print_computation_time.R . tam_print_package_rsession.R . tam_prior_eval_log_density_one_parameter.R . tam_pv_draw_pv_nonparametric.R . tam_pv_draw_pv_normal_approximation_1dim.R . tam_pv_draw_pv_normal_approximation_multidim.R . tam_pv_mcmc_calc_probs.R . tam_pv_mcmc_calc_probs_irf_3pl.R . tam_pv_mcmc_compute_marginal_likelihood.R . tam_pv_mcmc_evaluate_likelihood.R . tam_pv_mcmc_inits_MH_sampling_objects.R . tam_pv_mcmc_inits_plausible_values_objects.R . tam_pv_mcmc_inits_sampled_parameters_objects.R . tam_pv_mcmc_inits_theta.R . tam_pv_mcmc_likelihood.R . tam_pv_mcmc_likelihood_R.R . tam_pv_mcmc_parameter_samples.R . tam_pv_mcmc_parameter_samples_correlation.R . tam_pv_mcmc_parameter_samples_correlation_index.R . tam_pv_mcmc_parameter_summary.R . tam_pv_mcmc_person_inits_from_resp.R . tam_pv_mcmc_postproc_ic.R . tam_pv_mcmc_postproc_theta_acceptance_MH.R . tam_pv_mcmc_postproc_theta_posterior.R . tam_pv_mcmc_prior_density.R . tam_pv_mcmc_proc_input.R . tam_pv_mcmc_proc_regressors.R . tam_pv_mcmc_proposal_theta.R . tam_pv_mcmc_pv_acf.R . tam_pv_mcmc_refresh_theta.R . tam_pv_mcmc_sample_beta_variance.R . tam_pv_mcmc_sample_beta_variance_lm_beta.R . tam_pv_mcmc_save_parameters.R . tam_pv_mcmc_theta_MH_ratio_accept.R . tam_pv_mcmc_update_plausible_values.R . tam_pv_recommend_tam_pv_mcmc.R . tam_pv_sampling_beta.R . tam_pv_sampling_theta.R . tam_pv_summary_covariance.R . tam_rbind_twomatrices.R . tam_remove_missings.R . tam_round_data_frame.R . tam_round_data_frame_print.R . tam_rowCumsums.R . tam_rowMaxs.R . tam_rowcumsums1.R . tam_rsessinfo.R . tam_solve_ridge.R . tam_stud_prior.R . tam_stud_prior_multiple_groups.R . tam_summary_display.R . tam_summary_print_ic.R . tam_summary_print_ic_description.R . tam_summary_print_ic_one_ic.R . tam_theta_sq.R . tam_theta_sq1.R . tam_trim_increment.R . tam_vec2symmmatrix.R . tam_weighted_cross_product.R . tam_weighted_stats_select.R . tam_wle_print_WLErel.R . tam_wle_print_general.R . tamaan.3pl.lca.R . tamaan.3pl.loclca.R . tamaan.3pl.mixture.R . tamaan.3pl.olca.R . tamaan.3pl.trait.R . tamaan.R . tamaan_3pl_lca_extract_lcaprobs.R . tamaan_3pl_mixture_individual_class_probabilities.R . tamaanify.R . tamaanify.define.method.R . tamaanify.grep.linequations.R . tamaanify.modelconstraint.loadings.R . tamaanify.proc.loadings.B.fixed.R . tamaanify.tam.mml.3pl.deltadesign.R . tamaanify.tam.mml.3pl.designMatrices.LCA.R . tamaanify.tam.mml.3pl.designMatrices.LOCLCA.R . tamaanify.tam.mml.3pl.designMatrices.MIXTURE.R . tamaanify.tam.mml.3pl.designMatrices.OLCA.R . tamaanify.tam.mml.3pl.designMatrices.TRAIT.R . tamaanify_create_A.R . tamaanify_create_Q.R . tamaanify_modelprior.R . tamaanify_proc_analysis.R . tamaanify_proc_items.R . tamaanify_proc_itemtype.R . tamaanify_proc_lavaanmodel.R . tamaanify_proc_modelconstraint.R . tamaanify_proc_resp.R . tamaanify_tam_mml_3pl_create_delta_design.R . tamaanify_tam_mml_3pl_designMatrices.R . tamaanify_variance_fixed.R . tamcat.R . tampv2datalist.R . weighted_kurtosis.R . weighted_mean.R . weighted_quantile.R . weighted_quantile_type_selection.R . weighted_sd.R . weighted_skewness.R . weighted_table.R . weighted_var.R . zzz.R . Full TAM package functions and examples

Downloads during the last 30 days

Today's Hot Picks in Authors and Packages

lbfgs

Limited-memory BFGS Optimization

A wrapper built around the libLBFGS optimization library by Naoaki Okazaki. The lbfgs package implem ...
Download / Learn more Package Citations See dependency

Maintainer: Antonio Coppola (view profile)

mlr3viz

Visualizations for 'mlr3'

Visualization package of the 'mlr3' ecosystem. It features plots for mlr3 objects such as tasks, le ...
Download / Learn more Package Citations See dependency

Maintainer: Marc Becker (view profile)

openxlsx

Read, Write and Edit xlsx Files

Simplifies the creation of Excel .xlsx files by providing a high level interface to writing, stylin ...
Download / Learn more Package Citations See dependency

Maintainer: Jan Marvin Garbuszus (view profile)

DatabionicSwarm

Swarm Intelligence for Self-Organized Clustering

Algorithms implementing populations of agents that interact with one another and sense their environ ...
Download / Learn more Package Citations See dependency

Maintainer: Michael Thrun (view profile)

EMVS

The Expectation-Maximization Approach to Bayesian Variable Selection

An efficient expectation-maximization algorithm for fitting Bayesian spike-and-slab regularization p ...
Download / Learn more Package Citations See dependency

Maintainer: Gemma Moran (view profile)

solitude

An Implementation of Isolation Forest

Isolation forest is anomaly detection method introduced by the paper Isolation based Anomaly Detecti ...
Download / Learn more Package Citations See dependency

Maintainer: Komala Sheshachala Srikanth (view profile)

Alberto Alvarez-Iglesias

Atleast 1 packages