"The Sensory Integration Inventory – Revised for Individuals with Developmental Disabilities (SII-R; Reisman & Hanschu, 1999) is a non-standardized checklist that can be used to screen and rule out serious maladaptive behaviors that are not due to sensory dysfunction."

... meaning, she wants to know if a specific behaviour you're exhibiting is sensory related or not. If it is, a sensory diet can help. If it isn't, she'll guide you through the next step.