Checklist for Autism in Toddlers Third Edition(CHAT-3) for Chinese Children Hong Kong Study Principle Investigator: Prof virginia Wong Co-Investigators: Dr Cheuk-Wing Fung Dr Brian Hon-yin Chung Dr Wing-Cheong Lee Dr Joy lok-Sum Leung Ms Nancy I sang Ms stella hui
Checklist for Autism in Toddlers Third Edition (CHAT-3) for Chinese Children – Hong Kong Study Principle Investigator: Prof Virginia Wong Co-Investigators: Dr Cheuk-Wing Fung Dr Brian Hon-Yin Chung Dr Wing-Cheong Lee Dr Joy Lok-Sum Leung Ms Nancy Tsang Ms Stella Hui
Research background (1) Autistic disorder affects 5-30 in 10,000 of population most beneficial intervention: early and intensive special education
Research Background (1) • Autistic disorder affects 5-30 in 10,000 of population • most beneficial intervention : early and intensive special education
Research Background(2) Checklist for Autism in Toddlers A screening tool for prospective identification of autistic cases at 18 months of age Baron-Cohen 1992) Modif ied Checklist for autism in toddlers Robins et al (2001)) 18 to 24-months of age
Research Background (2) • Checklist for Autism in Toddlers – A screening tool for prospective identification of autistic cases at 18- months of age (Baron-Cohen 1992) • Modified Checklist for Autism in Toddlers (Robins et al (2001) ) – 18 to 24-months of age
Research background(3) Symbolic Play Test(Second Edition)to estimate the mental age an ad junctive tool to understand development of subjects 4 separate situations subject is allowed to play with the standard sets of miniature toys with minimal prompting
Research Background (3) • Symbolic Play Test (Second Edition) to estimate the mental age – an adjunctive tool to understand development of subjects – 4 separate situations – subject is allowed to play with the standard sets of miniature toys with minimal prompting
Objectives (1) To test the validity and reliability(internal consistency and inter-rater reliability)of the new CHaT-3 in Chinese children in Hong Kong any items that can best discriminate the autistic development will be sought To determine the most suitable cut-off criteria and risk stratification from the graduated scores of chat-3
Objectives (1) • To test the validity and reliability (internal consistency and inter-rater reliability) of the new CHAT-3 in Chinese children in Hong Kong • Any items that can best discriminate the autistic development will be sought • To determine the most suitable cut-off criteria and risk stratification from the graduated scores of CHAT-3