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  "Title": "Cognitive Models for Subjective Scales and Decision Making Tasks",
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  "Description": "Implements cognitive models for data from subjective\n(Likert or analog) scales and from decision making tasks with\nreaction times and choice data. Provides random generation,\ndensity functions, and custom response distributions for\nBayesian estimation with 'brms', covering discrete beta,\nordered beta and choice-confidence models for subjective\nratings; reaction time distributions such as the ex-Gaussian\nand the shifted log-normal, Wald, gamma and Weibull; and\nsequential sampling models of choice and reaction time,\nincluding the drift diffusion model (DDM), the racing diffusion\nmodel (RDM), the lognormal race model (LNR) and the linear\nballistic accumulator (LBA). The website provides examples and\ntutorials for using and interpreting the models. Methods are\ndescribed in Ratcliff and McKoon (2008)\n<doi:10.1162/neco.2008.12-06-420>, Brown and Heathcote (2008)\n<doi:10.1016/j.cogpsych.2007.12.002>, Rouder et al. (2015)\n<doi:10.1007/s11336-013-9396-3>, Tillman et al. (2020)\n<doi:10.3758/s13423-020-01719-6>, Kubinec (2023)\n<doi:10.1017/pan.2022.20>, and Sciandra et al. (2024)\n<doi:10.1007/s10651-023-00592-5>.",
  "URL": "https://github.com/DominiqueMakowski/cogmod,\nhttps://dominiquemakowski.github.io/cogmod/",
  "BugReports": "https://github.com/DominiqueMakowski/cogmod/issues",
  "License": "MIT + file LICENSE",
  "Encoding": "UTF-8",
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  "Date/Publication": "2026-09-26 08:01:19 UTC",
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    "cogmod_betadiscrete_lpmf_expose",
    "cogmod_betadiscrete_stanvars",
    "cogmod_betagate",
    "cogmod_betagate_lpdf_expose",
    "cogmod_betagate_stanvars",
    "cogmod_bisa",
    "cogmod_bisa_lpdf_expose",
    "cogmod_bisa_stanvars",
    "cogmod_choco",
    "cogmod_choco_lpdf_expose",
    "cogmod_choco_stanvars",
    "cogmod_ddm",
    "cogmod_ddm_lpdf_expose",
    "cogmod_ddm_stanvars",
    "cogmod_exgaussian",
    "cogmod_exgaussian_lpdf_expose",
    "cogmod_exgaussian_stanvars",
    "cogmod_exwald",
    "cogmod_exwald_lpdf_expose",
    "cogmod_exwald_stanvars",
    "cogmod_gamma",
    "cogmod_gamma_lpdf_expose",
    "cogmod_gamma_stanvars",
    "cogmod_geg",
    "cogmod_geg_lpdf_expose",
    "cogmod_geg_stanvars",
    "cogmod_inits",
    "cogmod_inv_metric",
    "cogmod_invgamma",
    "cogmod_invgamma_lpdf_expose",
    "cogmod_invgamma_stanvars",
    "cogmod_invgaussian",
    "cogmod_invgaussian_lpdf_expose",
    "cogmod_invgaussian_stanvars",
    "cogmod_invweibull",
    "cogmod_invweibull_lpdf_expose",
    "cogmod_invweibull_stanvars",
    "cogmod_lba1",
    "cogmod_lba1_lpdf_expose",
    "cogmod_lba1_stanvars",
    "cogmod_lba2",
    "cogmod_lba2_lpdf_expose",
    "cogmod_lba2_stanvars",
    "cogmod_lnr",
    "cogmod_lnr_lpdf_expose",
    "cogmod_lnr_stanvars",
    "cogmod_loggamma",
    "cogmod_loggamma_lpdf_expose",
    "cogmod_loggamma_stanvars",
    "cogmod_lognormal",
    "cogmod_lognormal_lpdf_expose",
    "cogmod_lognormal_stanvars",
    "cogmod_logstudent",
    "cogmod_logstudent_lpdf_expose",
    "cogmod_logstudent_stanvars",
    "cogmod_logweibull",
    "cogmod_logweibull_lpdf_expose",
    "cogmod_logweibull_stanvars",
    "cogmod_priors",
    "cogmod_rdm",
    "cogmod_rdm_lpdf_expose",
    "cogmod_rdm_stanvars",
    "cogmod_stanvars",
    "cogmod_step_size",
    "cogmod_warmstart",
    "cogmod_weibull",
    "cogmod_weibull_lpdf_expose",
    "cogmod_weibull_stanvars",
    "dcogmod_betadiscrete",
    "dcogmod_betagate",
    "dcogmod_bisa",
    "dcogmod_choco",
    "dcogmod_ddm",
    "dcogmod_exgaussian",
    "dcogmod_exwald",
    "dcogmod_gamma",
    "dcogmod_geg",
    "dcogmod_invgamma",
    "dcogmod_invgaussian",
    "dcogmod_invweibull",
    "dcogmod_lba1",
    "dcogmod_lba2",
    "dcogmod_lnr",
    "dcogmod_loggamma",
    "dcogmod_lognormal",
    "dcogmod_logstudent",
    "dcogmod_logweibull",
    "dcogmod_rdm",
    "dcogmod_weibull",
    "log_lik_cogmod_betadiscrete",
    "log_lik_cogmod_betagate",
    "log_lik_cogmod_bisa",
    "log_lik_cogmod_choco",
    "log_lik_cogmod_ddm",
    "log_lik_cogmod_exgaussian",
    "log_lik_cogmod_exwald",
    "log_lik_cogmod_gamma",
    "log_lik_cogmod_geg",
    "log_lik_cogmod_invgamma",
    "log_lik_cogmod_invgaussian",
    "log_lik_cogmod_invweibull",
    "log_lik_cogmod_lba1",
    "log_lik_cogmod_lba2",
    "log_lik_cogmod_lnr",
    "log_lik_cogmod_loggamma",
    "log_lik_cogmod_lognormal",
    "log_lik_cogmod_logstudent",
    "log_lik_cogmod_logweibull",
    "log_lik_cogmod_rdm",
    "log_lik_cogmod_weibull",
    "p_outlier",
    "pcogmod_betadiscrete",
    "pcogmod_bisa",
    "pcogmod_ddm",
    "pcogmod_exgaussian",
    "pcogmod_gamma",
    "pcogmod_geg",
    "pcogmod_invgamma",
    "pcogmod_invgaussian",
    "pcogmod_invweibull",
    "pcogmod_lognormal",
    "pcogmod_logstudent",
    "pcogmod_logweibull",
    "pcogmod_rdm",
    "pcogmod_weibull",
    "posterior_epred_cogmod_betadiscrete",
    "posterior_epred_cogmod_betagate",
    "posterior_epred_cogmod_bisa",
    "posterior_epred_cogmod_choco",
    "posterior_epred_cogmod_ddm",
    "posterior_epred_cogmod_exgaussian",
    "posterior_epred_cogmod_exwald",
    "posterior_epred_cogmod_gamma",
    "posterior_epred_cogmod_geg",
    "posterior_epred_cogmod_invgamma",
    "posterior_epred_cogmod_invgaussian",
    "posterior_epred_cogmod_invweibull",
    "posterior_epred_cogmod_lba1",
    "posterior_epred_cogmod_lba2",
    "posterior_epred_cogmod_lnr",
    "posterior_epred_cogmod_loggamma",
    "posterior_epred_cogmod_lognormal",
    "posterior_epred_cogmod_logstudent",
    "posterior_epred_cogmod_logweibull",
    "posterior_epred_cogmod_rdm",
    "posterior_epred_cogmod_weibull",
    "posterior_predict_cogmod_betadiscrete",
    "posterior_predict_cogmod_betagate",
    "posterior_predict_cogmod_bisa",
    "posterior_predict_cogmod_choco",
    "posterior_predict_cogmod_ddm",
    "posterior_predict_cogmod_exgaussian",
    "posterior_predict_cogmod_exwald",
    "posterior_predict_cogmod_gamma",
    "posterior_predict_cogmod_geg",
    "posterior_predict_cogmod_invgamma",
    "posterior_predict_cogmod_invgaussian",
    "posterior_predict_cogmod_invweibull",
    "posterior_predict_cogmod_lba1",
    "posterior_predict_cogmod_lba2",
    "posterior_predict_cogmod_lnr",
    "posterior_predict_cogmod_loggamma",
    "posterior_predict_cogmod_lognormal",
    "posterior_predict_cogmod_logstudent",
    "posterior_predict_cogmod_logweibull",
    "posterior_predict_cogmod_rdm",
    "posterior_predict_cogmod_weibull",
    "qcogmod_betadiscrete",
    "qcogmod_rdm",
    "rcogmod_betadiscrete",
    "rcogmod_betagate",
    "rcogmod_bisa",
    "rcogmod_choco",
    "rcogmod_ddm",
    "rcogmod_exgaussian",
    "rcogmod_exwald",
    "rcogmod_gamma",
    "rcogmod_geg",
    "rcogmod_invgamma",
    "rcogmod_invgaussian",
    "rcogmod_invweibull",
    "rcogmod_lba1",
    "rcogmod_lba2",
    "rcogmod_lnr",
    "rcogmod_loggamma",
    "rcogmod_lognormal",
    "rcogmod_logstudent",
    "rcogmod_logweibull",
    "rcogmod_rdm",
    "rcogmod_weibull",
    "with_outliers",
    "without_outliers"
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      "name": "badlm",
      "title": "Simulated Data Where Linear Models Fail",
      "object": "badlm",
      "class": [
        "data.frame"
      ],
      "fields": [
        "Participant",
        "Condition",
        "RT"
      ],
      "rows": 1000,
      "table": true,
      "tojson": true
    }
  ],
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    {
      "page": "badlm",
      "title": "Simulated Data Where Linear Models Fail",
      "topics": [
        "badlm"
      ]
    },
    {
      "page": "cogmod_inits",
      "title": "Starting values that keep the sampler out of the flat regions",
      "topics": [
        "cogmod_inits"
      ]
    },
    {
      "page": "cogmod_priors",
      "title": "Priors that make a cogmod posterior proper",
      "topics": [
        "cogmod_priors"
      ]
    },
    {
      "page": "cogmod_stanvars",
      "title": "The Stan code a cogmod family needs, read off the model",
      "topics": [
        "cogmod_stanvars"
      ]
    },
    {
      "page": "cogmod_warmstart",
      "title": "Warm-start a fit from a previous one: metric, step size and starting values",
      "topics": [
        "as.data.frame.cogmod_warmstart",
        "cogmod_inv_metric",
        "cogmod_step_size",
        "cogmod_warmstart",
        "print.cogmod_warmstart"
      ]
    },
    {
      "page": "p_outlier",
      "title": "Per-trial outlier probabilities",
      "topics": [
        "p_outlier"
      ]
    },
    {
      "page": "rcogmod_betadiscrete",
      "title": "Discrete Beta Model",
      "topics": [
        "cogmod_betadiscrete",
        "cogmod_betadiscrete_lpmf_expose",
        "cogmod_betadiscrete_stanvars",
        "dcogmod_betadiscrete",
        "log_lik_cogmod_betadiscrete",
        "pcogmod_betadiscrete",
        "posterior_epred_cogmod_betadiscrete",
        "posterior_predict_cogmod_betadiscrete",
        "qcogmod_betadiscrete",
        "rcogmod_betadiscrete"
      ]
    },
    {
      "page": "rcogmod_betagate",
      "title": "Beta-Gate Model",
      "topics": [
        "cogmod_betagate",
        "cogmod_betagate_lpdf_expose",
        "cogmod_betagate_stanvars",
        "dcogmod_betagate",
        "log_lik_cogmod_betagate",
        "posterior_epred_cogmod_betagate",
        "posterior_predict_cogmod_betagate",
        "rcogmod_betagate"
      ]
    },
    {
      "page": "rcogmod_bisa",
      "title": "Shifted Birnbaum-Saunders (Fatigue Life) Model",
      "topics": [
        "cogmod_bisa",
        "cogmod_bisa_lpdf_expose",
        "cogmod_bisa_stanvars",
        "dcogmod_bisa",
        "log_lik_cogmod_bisa",
        "pcogmod_bisa",
        "posterior_epred_cogmod_bisa",
        "posterior_predict_cogmod_bisa",
        "rcogmod_bisa"
      ]
    },
    {
      "page": "rcogmod_choco",
      "title": "Choice-Confidence (CHOCO) Model",
      "topics": [
        "cogmod_choco",
        "cogmod_choco_lpdf_expose",
        "cogmod_choco_stanvars",
        "dcogmod_choco",
        "log_lik_cogmod_choco",
        "posterior_epred_cogmod_choco",
        "posterior_predict_cogmod_choco",
        "rcogmod_choco"
      ]
    },
    {
      "page": "rcogmod_ddm",
      "title": "Drift Diffusion Model (DDM)",
      "topics": [
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        "cogmod_ddm_lpdf_expose",
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