BabyLex - the 2-minute research-based toddler vocabulary estimator

We are parents and know how much fun it is to follow the development of your child!

We are also researchers in child psychology and thus we have developed an app to estimate your toddler’s vocabulary size.

Using the BabyLex app you can follow the development of your child by completing the test as often as you like and seeing how your child’s vocabulary has increased. The test currently allows you to follow your monolingual toddler in English from 16 to 30 months of age, in German from 18 to 30 months of age, or in Norwegian from 18 to 36 months of age.

Once you have completed the test, you will see the result telling you the number of words your child likely produces from the long version of a standard vocabulary questionnaire used in clinical assessments of child development (in other words, your child will likely produce that many words or more) and also a percentile score of your child – how she/he compares with other children of the same sex and age.

We hope you have fun with this app – and we hope it helps you follow your child’s development in the same way we have followed ours!