From: Integrating automatic question generation with computerised adaptive test

Abbreviation | Summary |
---|---|

Item difficulty | |

EST | Item difficulty estimated from test taker‘s scores |

REG | ltem difficulty estimated using linear regression |

ORD | Item difficulty using an ordinal value 1 4 |

AVG | Item difficulty using average item difficulties of items in each group |

CAT simulations | |

LIN_EST | Simulation of the linear test, using EST item difficulty |

CAT_EST | Simulation of CAT, using EST item difficulty (gold standard) |

CAT_REG | Simulation of the CAT, using REG item difficulty |

CAT_AVG | Simulation of the CAT, using AVG item difficulty |

CAT_ORD | Simulation of CAT, using ORD item difficulty |