A communicative disorders assistant (CDA) performs hearing and speech-language screenings, prepares therapy materials, implements speech therapy, reports on therapy outcomes, performs routine maintenance on clinical equipment, and works with speech-language pathologists (SLPs) and audiologists to adjust therapy goals. While CDAs cannot perform assessments or set therapy goals, they are a vital part of the therapy team. CDAs are supervised by and work in conjunction with SLPs and audiologists.