This research originated from the need for a speech and language therapy assessment in te reo Maori for a particular child who attended a Maori immersion unit. A Speech and Language Therapy te reo assessment had already been developed but it needed to be revised and normative data collected. Discussions and assessments were carried out in a culturally-sensitive manner in partnership and consultation with Maori staff and the parents concerned. Results indicated that it is difficult to compare and interpret individual student results with aggregated data due to the varying levels of te reo spoken by the students assessed. (Contains 3 tables.)