Online CDI Tool
Oxford online CDI tool
The Oxford CDI is a list of words that are typical in children's vocabularies. The inventory is a comprehensive "catalogue" of words that are used by many different children across a wide age range, so do not worry if your child knows only a few of them at the moment.
Filling out the Oxford CDI
For words that your child understands place a mark in the first column, labelled "Understood"
For words that your child also says place marks in both the first, labelled "Understood", and the second column, labelled "Spoken"
For more information about the Oxford CDI or how to cite this tool click here