The Glaspey Dynamic Assessment of Phonology (GDAP) is a dynamic assessment of speech production and stimulability. This ground-breaking approach employs a unique 15-point cueing system and hierarchy (from 15 to 1) which represents the scaffolding levels available to a child in the production of a targeted phoneme. The GDAP incorporates Vygotsky’s social development theory along with stimulability and speech adaptability procedures from speech-language pathology. This responsive approach provides for a more sensitive measure that takes into account the emergence of skills and the child's ability to learn, not just the final speech product. Results yield a standardized score as well as areas of phonology to be targeted, if needed. XXX demonstrated difficulties with the following phonological patterns: