Package index • IRTsimrel

Package Overview

IRTsimrel-package IRTsimrel: IRTsimrel: Reliability-Targeted Simulation for Item Response Data

Core functions for reliability-targeted calibration

eqc_calibrate() print(<eqc_result>) summary(<eqc_result>): Empirical Quadrature Calibration (Algorithm 1: EQC)
sac_calibrate() print(<sac_result>) summary(<sac_result>) print(<summary.sac_result>) coef(<sac_result>) predict(<sac_result>): Stochastic Approximation Calibration (Algorithm 2: SAC)

Generate latent abilities and item parameters

sim_latentG(): Simulate Latent Ability Distribution for IRT Studies (G-family)
sim_item_params() print(<item_params>) summary(<item_params>): Simulate Item Parameters for IRT Studies
simulate_response_data(): Simulate Item Response Data from Calibration Results

Compute reliability metrics and screening tools

compute_rho_bar() compute_rho_tilde(): Compute Marginal Reliability from Simulated Test Information
compute_rho_both(): Compute Both Reliability Metrics in a Single Pass
compute_apc_init(): Analytic Pre-Calibration (APC) Initialization
compute_reliability_tam(): Compute WLE and EAP Reliability Using TAM
check_feasibility() print(<feasibility_check>): Check Feasibility of Target Reliability
rho_curve() print(<rho_curve>): Compute Reliability as a Function of Scaling Factor

Compare distributions and calibration results

Registered S3 methods with standalone reference topics

as.data.frame(<item_params>): Extract item parameters as data frame
as.numeric(<latent_G>) as.double(<latent_G>): Extract theta values from latent_G object
coef(<eqc_result>): Extract Calibrated Item Parameters from EQC Results
sac_calibrate() print(<sac_result>) summary(<sac_result>) print(<summary.sac_result>) coef(<sac_result>) predict(<sac_result>): Stochastic Approximation Calibration (Algorithm 2: SAC)
plot(<item_params>): Plot method for item_params objects
plot(<latent_G>): Plot Method for latent_G Objects
plot(<sac_result>): Plot an SAC Convergence Trajectory
predict(<eqc_result>): Predict Reliability at New Scaling Factor Values (EQC)
print(<latent_G>): Print Method for latent_G Objects
print(<summary.eqc_result>): Print Method for summary.eqc_result Objects
print(<summary.item_params>): Print Method for summary.item_params Objects
print(<summary.latent_G>): Print Method for summary.latent_G Objects
summary(<latent_G>): Summary Method for latent_G Objects

Backward-compatible aliases retained for migration from v0.1.x naming