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| ata | Automated Test Assembly |
| ata.constraint | Automated Test Assembly |
| ata.fixitem | Automated Test Assembly |
| ata.maxselect | Automated Test Assembly |
| ata.obj.abs | Automated Test Assembly |
| ata.obj.rel | Automated Test Assembly |
| ata.solve | Automated Test Assembly |
| cat.estimate.default | Computerized Adaptive Testing |
| cat.select.default | Computerized Adaptive Testing |
| cat.sim | Computerized Adaptive Testing |
| cat.stop.default | Computerized Adaptive Testing |
| estimate.item.bme | Item Calibration |
| estimate.item.jmle | Item Calibration |
| estimate.item.mmle | Item Calibration |
| estimate.theta.eap | Estimation of Ability Parameters |
| estimate.theta.map | Estimation of Ability Parameters |
| estimate.theta.mle | Estimation of Ability Parameters |
| freq | Utility Functions |
| gen.irt | Generate IRT Object |
| gen.rsp | IRT Object |
| hermite.gauss | Utility Functions |
| info | Common Computations |
| irt | IRT Object |
| likelihood | Common Computations |
| mst | Multistage Testing |
| mst.assemble | Multistage Testing |
| mst.assemble.sequence | Multistage Testing |
| mst.constraint | Multistage Testing |
| mst.get | Multistage Testing |
| mst.objective | Multistage Testing |
| mst.route | Multistage Testing |
| mst.sim | Multistage Testing |
| mst.stagelength | Multistage Testing |
| mst.summary | Multistage Testing |
| plot.cat | Computerized Adaptive Testing |
| plot.irt | IRT Object |
| plot.mst | Multistage Testing |
| print.ata | Automated Test Assembly |
| print.cat | Computerized Adaptive Testing |
| print.mst | Multistage Testing |
| prob | Common Computations |
| rmse | Utility Functions |
| winsteps | Interface to Winsteps |