Procedures Based on Item Response Theory Models for the
Development of Short Test Forms
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Documentation for package ‘shortIRT’ version 1.0.0
Help Pages
| bench | Benchmark Procedure |
| define_targets | Define theta targets |
| IRT | Compute expected probability for a single item |
| irt_estimate | Estimate of theta |
| item_info | Item Information Functions (multiple items, IIFs) |
| i_info | Item Information Function (single item, IIF) |
| logLik_theta | Log-likelihood estiamtion of theta |
| mpirt | Compute expected probability for multiple items |
| obsirt | Simulate responses according to IRT probabilities |
| plot.bench | Method for plotting the TIF of the STF |
| plot.iifs | Method for plotting the IIFs |
| plot.theta_target | Method for plotting the TIF of the STF |
| plot.tif | Plot TIF |
| summary.bench | Method for the summary of the STF |
| summary.theta_target | Method for the summary of the STF |
| theta_target | Theta target procedure |
| tif | Test Information Function (TIF) |