oREV: An item response theory-based open receptive vocabulary task for 3- to 8-year-old children

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Authors

Individual differences in early language abilities are an important predictor of later life outcomes. High-quality, easy-access measures of language abilities are rare, especially in the preschool and primary school years. The present study describes the construction of a new receptive vocabulary task for children between 3 and 8 years of age. The task was implemented as a browser-based web application, allowing for both in-person and remote data collection via the internet. Based on data from N = 581 German-speaking children, we estimated the psychometric properties of each item in a larger initial item pool via item response modeling. We then applied an automated item selection procedure to select an optimal subset of items based on item difficulty and discrimination. The so-constructed task has 22 items and shows excellent psychometric properties with respect to reliability, stability, and convergent and discriminant validity. The construction, implementation, and item selection process described here makes it easy to extend the task or adapt it to different languages. All materials and code are freely accessible to interested researchers. The task can be used via the following website: https://ccp-odc.eva.mpg.de/orev-demo.
Original languageEnglish
JournalBehavior Research Methods
Volume56
Issue number3
Pages (from-to)2595-2605
Number of pages11
ISSN1554-351X
DOIs
Publication statusPublished - 03.2024

Bibliographical note

Publisher Copyright:
© The Author(s) 2023.

    Research areas

  • Psychology - Language development, Vocabulary, Individual differences, Item response models

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