Important work has been done in the field of speech-language pathology to assess the skills of children who have difficulty understanding and using language. However, clinicians do not have ready access to profiles of children with language impairment. Research-based profiles of language disorders could be used by clinicians to improve accuracy of diagnosis and choose appropriate treatment goals. Through collecting a large, longitudinal database of children with a variety of language impairments across a battery of tests, we can create profiles of how children with specific impairments change over time and what treatment targets might have the greatest impact.