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Related Experiment Videos

A multiple form word production checklist for assessing early language.

J S Reznick, L Goldsmith

    Journal of Child Language
    |February 1, 1989
    PubMed
    Summary

    This study developed five equivalent checklists to assess early word production in toddlers. Validation confirmed these lists reliably measure vocabulary development and linguistic categories in young children.

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    Area of Science:

    • Developmental Psychology
    • Linguistics
    • Child Language Acquisition

    Background:

    • Assessing early word production is crucial for understanding child development.
    • Existing tools may lack sufficient comparability for longitudinal studies.
    • Parental report instruments are valuable but require robust validation.

    Purpose of the Study:

    • To develop and validate a set of equivalent checklists for assessing toddler word production.
    • To ensure checklists offer comparable difficulty levels for serial or individual use.
    • To confirm the reliability of these checklists in capturing vocabulary and linguistic diversity.

    Main Methods:

    • Development of five non-overlapping, yet equivalent, word production checklists.
    • Validation study involving 25 infants.
    • Analysis of mean production scores, age-related differences, and individual variations in linguistic categories.

    Main Results:

    • The five checklists yielded comparable mean production scores.
    • The checklists effectively reflected age-related differences in vocabulary.
    • Individual differences in total production and specific linguistic categories (nouns, verbs, open/closed class items) were preserved.

    Conclusions:

    • The developed checklists provide a reliable method for assessing toddler word production.
    • These tools support both cross-sectional and longitudinal research designs.
    • Parental report instruments are confirmed as reliable for evaluating early language development.

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