WYKORZYSTANIE POJĘCIA NORMY W BADANIACH ILOŚCIOWYCH NAD ROZWOJEM SŁOWNIKA UMYSŁOWEGO
Applying the notion of a norm to quantitative research on mental lexicon development

Summary/Abstract: This paper presents an interpretation of the notion of a norm in interdisciplinary research verging on the domains of psychology (including psychometrics), psycholinguistics and applied linguistics. The empirical descriptive norm is contrasted with the prescriptive norm, also called the postulative norm. The authors point to the need to elaborate empirical descriptive developmental norms for tests designed for the purpose of diagnosing linguistic competence in children and describe the recommended elaboration methods. The discussed issues are illustrated with examples derived from Obrazkowy Test Słownikowy – Rozumienie (Picture Vocabulary Test: Comprehension) (OTSR, Haman & Fronczyk, 2012). This test is a standardised psychometric test for assessing the passive vocabulary size in children aged 2-6. It can be useful as a component of a child’s overall language development assessment.

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