itemanalysis - Classical Test Theory Item Analysis
Runs classical item analysis for multiple-choice test items and polytomous items (e.g., rating scales). The statistics reported in this package can be found in any measurement textbook such as Crocker and Algina (2006, ISBN:9780495395911).
Last updated 3 years ago
3.00 score 2 stars 2 scripts 212 downloadsEstCRM - Calibrating Parameters for the Samejima's Continuous IRT Model
Estimates item and person parameters for the Continuous Response Model (CRM; Samejima, 1973, <doi:10.1007/BF02291114>), computes item fit residual statistics, draws empirical 3D item category response curves, draws theoretical 3D item category response curves, and generates data under the CRM for simulation studies.
Last updated 2 years ago
1.95 score 1 stars 3 dependents 6 scripts 372 downloads