The MacArthur-Bates Communicative Development Inventories

The MacArthur-Bates Communicative Development Inventories (CDI) are standardized questionnaires used by parents or caregivers to assess a young child's language skills and communication development. They typically include checklists of words and gestures the child might understand or use, helping professionals monitor progress and identify delays. The CDI is a reliable tool for early detection of speech and language development issues, guiding early intervention efforts. It is widely used in research and clinical settings to gain insights into a child's communicative abilities during early childhood, usually between 8 months and 3 years of age.