Wordbank is an open database of information about children’s vocabulary growth.
Wordbank archives data from the MacArthur-Bates Communicative Development Inventory (MB-CDI), a family of parent-report questionnaires. Wordbank enables researchers to analyze MB-CDI data in terms of aggregate vocabulary, individual items, demographic variables, and more. It provides interactive visualizations, exploratory reports, and data export tools.
Wordbank is open access! You can use the wordbankr package to access Wordbank data from R.