測量二語學習者的詞語知識時，我們是想知道什麼？

測量人們的詞語知識時，我們會關心兩個事情：一、某個特定的字是否為學習者所熟悉；二、對於詞語背後系統性的規律是否有意識(Nation, 2013) 。舉例來說，要求學習者去拼出agree、balloon和practice的時候，我們可能關心學習者是否能拼出這三個詞語；但是我們也可能測試學習者swimming、occurrence或spinner，這時候可能想知道的是學習者是否知道兩個子音可以接連出現的規律。若要知道隱藏在詞語背後的規律，則必須對於材料有很好的控制。對於詞語背後的規律的測驗是非常缺乏的。

References

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