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A short-form version of the Australian English Communicative Development Inventory.

Caroline Jones1, Marina Kalashnikova1,2, Chantelle Khamchuang1

  • 1MARCS Institute for Brain, Behaviour & Development, Western Sydney University, Penrith, Australia.

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PubMed
Summary
This summary is machine-generated.

The Australian English Communicative Development Inventory Short Form (OZI-SF) is a new 100-item tool for assessing language development in Australian children aged 12-30 months. This validated instrument offers a quicker, more accessible assessment for early communication difficulties.

Keywords:
Australian EnglishMacArthur-BatesVocabularyassessmentgestureparents

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Area of Science:

  • Child language development
  • Speech-language pathology
  • Psychometrics

Background:

  • The Australian English Communicative Development Inventory (OZI) is a comprehensive 558-item parent-report tool for assessing language development in children aged 12-30 months.
  • Existing tools may present challenges related to time commitment and literacy demands for parents.

Purpose of the Study:

  • To introduce and validate the OZI Short Form (OZI-SF), a 100-item, picture-supported, online instrument.
  • To reduce time and literacy demands for parents assessing child language development.

Main Methods:

  • Study 1: Item selection from OZI based on age of acquisition and semantic categories, with added items for gestures and games/routines. Simulations used existing OZI norm data to compute OZI-SF scores and correlate with OZI scores.
  • Study 2: Independent norming sample (n=230 parents) completed the OZI-SF for children aged 12-30 months. Child scores were analyzed by age and sex.

Main Results:

  • OZI-SF and OZI scores demonstrated high correlations across various age and language development levels.
  • Vocabulary scores (receptive and expressive) correlated with age, with girls showing higher medians until 24 months.
  • By 24 months, 50% of children combined words frequently. Median OZI-SF completion time was 12 minutes.

Conclusions:

  • Fitted percentiles provide guidelines for typical performance and identify children at risk for communication difficulties.
  • The OZI-SF is a validated short-form of the OZI, suitable for research and clinical/educational use with Australian families.
  • The OZI-SF offers a promising, accessible tool for early language assessment.