ABA: Applied Behavior Analysis

ABC: Autism Behavior Checklist - a diagnostic tool

ADA: Americans with Disabilities Act

ADD: Attention Deficit Disorder

ADHD: Attention Deficit Hyperactivity Disorder

ADI: Autism Diagnostic Interview - a diagnostic tool developed in London by the Medical Research Council

ADOS: Autism Diagnostic Observation Scale

AIT: Auditory Integration Training

AS: Asperger's Syndrome

ASA: Autism Society of America

ASD: Autism Spectrum Disorders

ASL: American Sign Language

CARS: Childhood Autism Rating Scale

CBCL: Achenbach Childhood Behavior Checklist - a diagnostic tool

CHAT: Checklist for Autism in Toddlers - a diagnostic tool

DAN Doctor: a physician who uses the DAN protocol to diagnose autism

DAN Protocol: an assessment protocol that examines the underlying disorders causing autism

DD: Developmental Disabilities DVD: Developmental Verbal Dyspraxia

EEG: ElectroencephalogramELAP: Early Learning Accomplishment Profile - an evaluation tool

FC: Facilitated CommunicationFCT: Facilitated Communication Training

GARS: Gilliam Autism Rating Scale

HFA: High-functioning Autistic

ICF: Intermediate Care Facility

IDEA: Individuals with Disabilities Act

IEP: Individualized Education Plan

IFSP: Individualized Family Service Plan

IHP: Individualized Habilitation Program

IPP: Individual Program Plan

LCSW: Licensed Clinical Social WorkerLRE: Least Restrictive Environment

MSDD: Multi-System Developmental Disorder

NT: Neurologically Typical or Neurotypical

NOS: Not Otherwise Specified

OCD: Obsessive Compulsive DisorderODD: Oppositional Defiant DisorderOT: Occupational Therapist

PDD: Pervasive Developmental Disorder

PDD NOS: Pervasive Developmental Disorder Not Otherwise Specified

PECS: Picture Exchange Communication System

PEP: Psycho-educational Profile

PEP-R: Psycho-educational Profile Revised

PRT: Pivotal Response Training

PT: Physical Therapy

SAS: Specialized Autism Services

SI: Sensory Integration

SIB: Self-Injurious Behavior

SIT: Sensory Integration Therapy

TEACCH: Treatment and Education of Autistic and Related Communication Handicapped Children