eyeprocess
Harmonize Eye-Tracking, Pupillometry, Biometrics, and Psychometric Process Data

Package index
Search the eyeprocess package
Vignettes
Functions
3587
Source code
366
Man pages
972
Home
/
CRAN
/
eyeprocess
/
eyeprocess_irt_item_information: Compute item information for transparent IRT families

eyeprocess_irt_item_information: Compute item information for transparent IRT families
In eyeprocess: Harmonize Eye-Tracking, Pupillometry, Biometrics, and Psychometric Process Data

View source: R/083-irt-foundations-information-0-9.R

eyeprocess_irt_item_informationR Documentation

Compute item information for transparent IRT families

Description

Compute item information for transparent IRT families

Usage

eyeprocess_irt_item_information(
  theta,
  family = c("2pl", "3pl", "4pl", "grm", "gpcm", "nominal"),
  ...,
  D = 1
)

Arguments

theta

Latent-trait value or vector of latent-trait values.

family

IRT response family or model family.

...

Additional arguments passed to the selected method or external engine.

D

Logistic scaling constant.

Value

A numeric value or vector containing item information for transparent IRT families.


eyeprocess documentation built on Sept. 28, 2026, 5:08 p.m.

Related to eyeprocess_irt_item_information in eyeprocess...

eyeprocess index
Package overview README.md Adaptive testing design and governance Advanced model programme and validation Advanced pupillometry representations and confound control Advanced Rasch, mixture-IRT, and imputation sensitivity API lifecycle and canonical interfaces Bayesian and 3PL Process Diagnostics Building a software-paper evidence bundle Calibration uncertainty and eye-tracking data quality Cognitive diagnosis and Q-matrix governance Complete Gazepoint Downstream Workflow Computational benchmarking and synthetic stress testing Does Latent State Structure Add Measurement Information? Dynamic IRTree and transition-model hardening Empirical validation programmes in eyeprocess Evidence and Decision Provenance Experimental Process-IRT Methods and Evidence Gates External IRT engines and exact-method gating Frozen validation evidence programme Functional pupil-IRT modelling Gaze-informed diffusion-IRT modelling Gazepoint and Gazepoint Biometrics Workflows Getting Started with eyeprocess Governed end-to-end analysis pipelines Identifiability, State Separation, and Label Uncertainty Importing and Harmonizing Eye-Tracking Exports Independent multi-vendor validation corpus Independent Vendor Validation and Semantic Fidelity Interoperability, Eye-Tracking-BIDS, and storage Interoperability with targets-style workflows IRT information, scoring, and diagnostics IRT linking, DIF, DTF, and invariance evidence IRT recovery, SBC, and misspecification evidence Item-Bank Decisions, Fairness Drift, and Reference Centiles Item seeding, accessibility review, and presentation fairness M2 Posterior Predictive Checks and Negative Controls M2 Process Information and Channel Ablation M2 Recovery and Identifiability M2 Three-Way Reference Model: Response, RT, and Gaze M3 device transport, falsification controls, and sensor value M3: Four-channel response, RT, gaze, and pupil measurement M3 functional pupil bridge: from trajectories to joint measurement M3 process information: ablation, redundancy, and sensor value M3 pupil measurement: confounds, quality, and missingness M3 recovery, identifiability, and failure-case validation Manual Installation of Multimodal Backends Measurement accountability: pupil latency, event plausibility, and validation Measurement-quality stress tests and negative controls Measurement Uncertainty and Recalibration Multiblock process structure, profiles, and external validity Multidimensional, testlet, and latent-regression IRT Multimodal Process IRT: Responses, Time, Gaze, and Missingness Multiple-Response Items, Revisiting, and Local Dependence Multi-vendor empirical validation Negative Controls and State-Count Sensitivity Negative controls, placebo windows, and temporal leakage Post-deployment psychometric-biometric drift monitoring Preprocessing, AOIs, and Feature Engineering Probabilistic AOIs and Compositional Attention Process-decision proxies and research-frontier gates Process Information and Channel Ablation Process-IRT Model Atlas: What to Fit, What to Validate, What Not to Claim Process-measure registry, repeatability, and reliability Process pre-flight and anomaly governance Process Reliability and Device Transportability Psychometric Process-Data Models Public benchmark and software-paper reproduction Pupil Measurement Boundaries in Multimodal IRT Pupil Phase-Amplitude Registration and Missingness Quality, Provenance, and Responsible Interpretation Recovery and Validation of Latent Response-Process States Representative Scanpaths and Cognitive Episodes Reproducibility fingerprints, provenance, and RO-Crate Research-scale validation execution Research validation and software-paper programme Response-time and process-aware IRT Sensitivity, specification curves, and decision stability Simulation-based calibration and measurement-resolution guards Specifying and Fitting the M4 Reference Model Stable APIs, scalable storage, and external adapters Streaming scoring and validation evidence bundles Temporal and Spatial Process Science Temporal process windows and AOI trajectories Theory-constrained strategy mixtures Trait-Conditioned Latent Response-Process States Unified Multimodal Process-IRT Validating Real Eye-Tracking Exports Validation Before Promotion: Recovery, SBC, PPC, and Transportability Validation evidence atlas and software-paper reporting Visual-context and testlet IRT

R Package Documentation

rdrr.io home R language documentation Run R code online

Browse R Packages

CRAN packages Bioconductor packages R-Forge packages GitHub packages

We want your feedback!

Note that we can't provide technical support on individual packages. You should contact the package authors for that.
GitHub issue tracker
ian@mutexlabs.com
Personal blog

 
Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.

Close