Using a parental checklist to identify diagnostic groups in children with communication impairment: a validation of the Children's Communication Checklist—2

CCC-2 provides a useful screening measure for communication impairment and can be helpful in identifying children who should be referred for more detailed assessment of possible autistic spectrum disorder. However, the present data highlight substantial overlap amongst groups with 'distinct' diagnoses. It is suggested that it is unrealistic to use the CCC-2 to make categorical distinctions on this continuum of disorder.