ASD A comprehensive ASD diagnosis using a wide range of standardised and non standardised tests such as CASD-SF, GARS 3, DSM 5 TR, ADI –R. A variety of tests are used in triangulation to ensure accuracy in diagnosis. Duration – approximately 3 hours. A comprehensive report is provided. Screening for children under the age of 2 and diagnosis for children over the age of 2.  ADHD A compressive ADHD diagnosis using standardised tests such as Conners Scale which is consistent with DSM 5. Supplementary test for Executive Function assessment using Brown Scale. Test of Everyday Attention for Children (TEA –CH2) and Nonverbal Stroop Card Sorting Test (NSCST).  Diagnosis for children over the age of 6 and screening for children under the age of 6. ​ ​ Auditory Processing Disorder (APD) APD is comorbid with ASD and ADHD and it is often an underdiagnosed condition in Sri Lanka. APD is diagnosed using standardised assessment for children and adults using SCAN. This test is only available for native English speakers (Screening is available for non-native speakers) Sensory Integration A wide range of standardised instruments such as Sensory Profile 2, Sensory Profile – Adult, Sensory Processing Measure (SPM), and Spiral Foundation ​ ​​Intelligence Assessment Children with special needs are often disadvantaged by verbal intelligence tests. At The Tree House International, we provide a wide range of standardised nonverbal intelligence tests: Universal Nonverbal Intelligence Test 2 (UINT 2), Raven 2, Wechsler Nonverbal Scale of Ability General Development The child’s development is assessed based on areas of deficit and strengths using Social Skills Improvement System (SSIS), Developmental Profile 4,  Behaviour Assessment System for Children 3 (BASC 3), Vineland - 3 Educational Assessment Standardised tests such as Wide Range Achievement Test – 5 (WRAT 5) and The Dyslexia Screening Test (DST).