Development and norming of the Hungarian CDI-III: A screening tool for language delay.
Bence Kas, Zoltán Jakab, József Lőrik
PMID 34997807WHAT IT FOUND
The Hungarian CDI-III is a reliable parent-report screening tool for language delay in children aged 30 to 50 months.
It identifies potential delays using cut-off scores for vocabulary, sentences, and language use. It does not yet have proven classification accuracy against clinical diagnoses.
Key findings
01The instrument is recommended for screening children between 30 and 50 months, as cut-off scores for children younger than 30 months were too low to be appropriate.
02Vocabulary, Sentences, and Language Use sections showed good reliability and unidimensionality, but the Productive Errors section did not and should not be used as a norm-based scale.
03Classification accuracy against clinical diagnoses has not yet been studied for this version.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The sample had a higher proportion of educated parents than the general Hungarian population, which may affect the validity of cut-off scores for lower socio-economic groups. Classification accuracy (sensitivity and specificity) against clinical diagnoses has not been tested for this version. The tool does not measure receptive language, which requires direct assessment. The Productive Errors section was not psychometrically sound and should not be used for norm-based scoring.
Declared interests
Funding was provided by the NRDI Fund of the National Research, Development and Innovation Office.
The easy way to misread this
Do not assume this tool can diagnose language disorders. It is a screening instrument that identifies children who need further assessment. Its classification accuracy against clinical diagnoses has not yet been established.