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arXiv · 2507.19869

The Polish Vocabulary Size Test: A Novel Adaptive Test for Receptive Vocabulary Assessment

Danil Fokin·Monika Płużyczka·Grigory Golovin
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Abstract

We present the Polish Vocabulary Size Test (PVST), a novel tool for assessing the receptive vocabulary size of both native and non-native Polish speakers. Based on Item Response Theory and Computerized Adaptive Testing, PVST dynamically adjusts to each test-taker's proficiency level, ensuring high accuracy while keeping the test duration short. To validate the test, a pilot study was conducted with 1.475 participants. Native Polish speakers demonstrated significantly larger vocabularies compared to non-native speakers. For native speakers, vocabulary size showed a strong positive correlation with age. The PVST is available online at myvocab.info/pl.

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Danil Fokin, Monika Płużyczka, Grigory Golovin. 2025-07-26. The Polish Vocabulary Size Test: A Novel Adaptive Test for Receptive Vocabulary Assessment. https://doi.org/10.3758/s13428-025-02775-3

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