Testlet Item Response Theory


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Documentation for package ‘tirt’ version 0.2.0

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binary_irt Binary (Dichotomous) Item Response Theory Estimation Using Likelihood or Bayesian
ela1 Mixed-Format English Language Arts (ELA) Assessment Data (Form 1)
ela2 Mixed-Format English Language Arts (ELA) Assessment Data (Form 2)
ela3 Large-Scale Mixed-Format English Language Arts (ELA) Assessment Data (Form 3)
ela3_testmap Large-Scale Mixed-Format English Language Arts (ELA) Assessment Data Testmap (Form 3 Testmap)
equate_irt Item Response Theory Equating / Linking
fixed_item Fixed Item Calibration
fix_person Fixed Person Calibration with or without Covariate
irt_trt Joint Item Response Theory and Testlet Response Theory Estimation (Dichotomous & Polytomous)
mixed_irt Mixed Item Response Model Estimation (Dichotomous & Polytomous) with Prior Support
polytomous_irt Polytomous Item Response Theory Estimation Using Likelihood or Bayesian
sim_irt Simulate Item Response Theory Data
sim_trt Simulate Testlet Response Theory Data (Vector Supported Version)
trt_binary Unidimensional Binary (Dichotomous) Testlet Response Theory Estimation
trt_poly Unidimensional Polytomous Testlet Response Theory Estimation