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Self-reported parental vocabulary input frequency for young children.
Dorthe Bleses1, Werner Vach2, Philip S Dale3
1TrygFonden's Centre for Child Research and School of Communication and Culture, Aarhus University,Denmark.
Journal of Child Language
|April 16, 2018
Summary
Parental self-report offers a valid method for estimating vocabulary input frequency in young children. This approach correlates well with existing methods, aiding child language acquisition research.
Area of Science:
- Developmental Psychology
- Linguistics
- Child Language Acquisition
Background:
- Vocabulary input frequency is a key factor influencing a child's age of word acquisition.
- Accurate frequency estimation is crucial for controlling variables in language development studies.
Purpose of the Study:
- To introduce and validate a novel method for estimating vocabulary input frequency: parental self-report.
- To assess the correlation between self-reported frequencies and established frequency estimation methods.
Main Methods:
- 918 parents of Danish-speaking children (12-36 months) estimated the usage frequency of 725 words.
- Self-reported frequencies were compared with language sample-based frequencies and written corpus frequencies.
Main Results:
- Parental self-report showed substantial correlations with language sample frequencies (0.67) and written corpus frequencies (0.58).
- Frequency-based correlations with age of acquisition were comparable between self-report and language sample estimates.
- Self-report frequency estimates demonstrated promising validity and situational independence.
Conclusions:
- Parental self-report is a valid and practical method for estimating vocabulary input frequency in child language research.
- This method offers a valuable, situation-independent alternative for frequency estimation, supporting future studies on language acquisition.
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