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<p>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 1475 participants. Native Polish speakers demonstrated significantly larger vocabularies (mean = 75,125 words; range = 19,556–122,693) compared to non-native speakers (mean = 7165 words; range = 646–23,394). For native speakers, vocabulary size showed a strong positive correlation with age (r = .496, p &lt; .001). The PVST is available online at <a href="https://www.myvocab.info/pl">myvocab.info/pl</a>.</p>

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The Polish vocabulary size test: A novel adaptive test for receptive vocabulary assessment

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  • 发表日期：

    2025年8月11日

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  • Danil Fokin,
  • Monika Płużyczka,
  • Grigory Golovin

摘要

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 1475 participants. Native Polish speakers demonstrated significantly larger vocabularies (mean = 75,125 words; range = 19,556–122,693) compared to non-native speakers (mean = 7165 words; range = 646–23,394). For native speakers, vocabulary size showed a strong positive correlation with age (r = .496, p < .001). The PVST is available online at myvocab.info/pl.