Reihe Language Testing and EvaluationKlaus Siller × Predicting Item Difficulty in a Reading TestA Construct Identification Study of the Austrian 2009 Baseline English Reading TestKlaus SillerPeter Lang GmbH, Internationaler Verlag der WissenschafteneBook2020 Predicting Item Difficulty in a Reading TestA Construct Identification Study of the Austrian 2009 Baseline English Reading TestKlaus SillerPeter Lang GmbH, Internationaler Verlag der WissenschafteneBook2020 Predicting Item Difficulty in a Reading TestA Construct Identification Study of the Austrian 2009 Baseline English Reading TestKlaus SillerPeter Lang GmbH, Internationaler Verlag der WissenschafteneBook2020 Predicting Item Difficulty in a Reading TestA Construct Identification Study of the Austrian 2009 Baseline English Reading TestKlaus SillerPeter Lang GmbH, Internationaler Verlag der WissenschaftenHardcover2020