Vector Psychometric Group, LLC has compiled examples, a list of frequently asked support questions, and a User’s Manual. If you have a question not answered in the supporting materials please contact flexMIRT® support at flexMIRT@VPGCentral.com. When emailing for support, please include your active flexMIRT® license number in your email.
Syntax Examples Version 3.5
- All Examples
- 2.1 2PL Calibration Syntax
- 2.2 Single Group 3PL Calibration Syntax
- 2.3 3PL EAP Scoring example
- 2.4 3PL ML Scoring example
- 2.5 Graded Model Combined Calibration and Scoring Syntax with Recoding
- 2.6 1PL Calibration and Scoring with Response Pattern Data
- 2.7 Nominal Model Calibration
- 2.8 Nominal Model Calibration 2
- 2.9 Generalized Partial Credit Model
- 2.10 Rating Scale Model with Trend Contrasts
- 2.11 Rating Scale Model with Triangle Contrasts
- 3.1 2-Group 3PL Using Normal Priors with EAP Scoring
- 3.2 2-Group 3PL with Empirical Histogram
- 3.3 2-Group 3PL MAP Scoring from Parameter Estimates
- 3.4 2-Group 3PL Summed Score to EAP Conversion Table
- 3.5 DIF: Test All Items
- 3.6 DIF: Test Candidate Items
- 3.7 Multiple Group Multilevel Model
- 3.8 Multilevel Model with Covariates
- 4.1 EFA with Oblique CF-Quartimax Rotation
- 4.2 EFA with Target Rotation
- 4.3 Confirmatory MIRT Model with Correlated Factors – Graded
- 4.4 Bifactor Structure – Nominal Model
- 4.5 Bifactor Structure – 2PL
- 4.6 Testlet Model – 2PL
- 5.1 MH-RM: Confirmatory MIRT Model
- 5.2 MH-RM: EFA
- 5.3 MH-RM: Multilevel MIRT Model
- 5.4 MH-RM: Fixed Effects Calibration
- 6.1 Simulation – Graded Model Syntax Only
- 6.2 Simulation – Graded Model Using PRM File
- 6.3 Simulation – 3PL Model Normal Population
- 6.4 Simulation – Empirical Histogram Prior
- 6.5 Simulation – Bifactor Structure From Existing Parameter File
- 6.6 Simulation – DIF and Group Mean Differences
- 6.7 Simulation- Multilevel, Multiple Group Model with Bifactor Structure and Covariates
- 7.1 C-RUM Model Fit To Simulated Data
- 7.2 DINA Fit to Simulated Data
- 7.3 DINO Fit to Simulated Data
- 7.4 Testlet Structure with DINA model
- 7.5 Rupp, Templin, & Henson – Example 9.2
- 7.6 Rupp, Templin, & Henson – Example 9.2 without D group
- 7.7 de la Torre Subtraction Syntax
Plotting Examples