Transdisciplinary Play-Based Assessment (TPBA) is now available to select as part of the Evaluation Process. Preschool Evaluations: When requesting assessments, Transdisciplinary Play-Based Assessments (TPBA) are a type of comprehensive assessment used by preschool evaluating teams that is now available as an option under Assessment Type. Preschool Teams: Please make sure to include preschool teachers, social workers, school/clinical psychologists, speech-language pathologists, occupational therapists, and physical therapists on the Preschooler’s team