Language Disorders from Infancy Through Adolescence: Listening, Speaking, Reading, Writing, and Communicating

by Courtenay Norbury DPhil

Expected Relations between Age and Intelligibility in Typically Speaking Children Age Percentage of Intelligible Words 24 months old 50% 36 months old 80% 48 months old 100% Adapted from Gordon-Brannan, G., & Weiss, C. (2006). Clinical management of articulatory and phonic disorders. Hagerstown, MD: Lippincott, Williams, & Wilkins.