The Autism Discriminative Tool or ADT is a second level autism screening tool for use by specialists such as child psychiatrists/neurologists/psychologists...or any team in contact with toddlers at risk of neurodevelopmental disorders. It is one of the first intrument to be based on the DSM-5 and its new ASD criterias. Particularly detailed, it targets preschoolers deemed “at risk” for autism spectrum disorders.

Description

The ADT is composed of 35 items based on the presence or absence of specific behaviours. Twenty-six items are considered critical and used for screening purposes. The ADT is to be completed by mainstream nursery school teachers but remains scored and interpreted by second level child specialists (e.g. child neurologists/psychiatrists). Nonetheless, in the absence of a reference doctor, the ADT can also be used by paramedicals (e.g. psychologists), child prevention/protection teams, (school) mental health services or any other services in contact with children presenting an atypical development. Fast and easy to use, the ADT informs clinicians about the necessity to address children at risk of ASD to specialised diagnostic teams. In the countries where no screening process exists, the ADT can be used by autism diagnostic teams to quickly evaluate the relevance of multidiscipinary assessment or determine assessment priorities. 

Development

The ADT results from several years of research within the context of a Ph.D programme at the Université Libre de Bruxelles. It was created in response to the lack of effective ASD screening in many European countries. Its validation started with an exploratory study, followed by a prospective multicentric study. This latter included a sample of 126 children waiting for a diagnostic assessment in 3 Belgian and French official specialist ASD clinics. Its development followed rigorous scientific guidelines, via blind ratings, inclusion of a controle group, clinical cohorts’ follow-up and use of gold standard tools during final diagnostic assessment. Results indicated a value of 0.94 for specificity and 0.83 in terms of sensibility, allowing for differential screening between risk of ASD and probability of another (neuro)developmental pathology. 

Article relating to the exploratory scientific study : Carlier, S., Kurzeja, N., Ducenne, L., Pauwen, N., Leys, C., & Delvenne, V. (2017). Differential profile of four groups of children referred to an autism diagnostic service in Belgium: Autism-specific hallmarks. Journal of intellectual Disabilities. DOI:10.1177/1744629517713516.  

Article relating to the validation study : Carlier, S., Ducenne, L., Stanciu, R., Deconinck, N., Wintgens, A., Orêve,M-J., & Delvenne, V. Improving autism screening in French-speaking countries: Validation of the Autism Discriminative Tool, a teacher-rated questionnaire for clinicians' use. Submitted. 

Orderings and prices

Our auto-edition politic makes the ADT affordable, in order to promote its use among professionals:
Belgium: 85 €  (all inclusive)
France, Luxembourg, Switzerland: 90 € (all inclusive)    
Canada: 95 € (all inclusive)                                                                                                                                 

Prices for other coutries on demand. To purchase the manual and forms, download the ordering form and send it to adt.autism@yahoo.com.

ASD teams interested in validating an italian, english or spanish version are welcome to contact me. 

 

 

Sophie Carlier

Sophie Carlier holds a Ph.D. in Clinical Psychology and several complementary university degrees in child psychology. She started her career in Great-Britain at the end of the 90’s, with a special interest for autism spectrum disorders, learning disabilities and its co-morbidities (PLD + mental health) and behavioural problems. Back in Belgium, she pursued her clinical community work, in combination with private practice, teaching and team supervision. Sophie Carlier joined the Queen Fabiola Children’s University Hospital (Brussels) in 2007, where she works at both the Autism Reference Center (third level diagnostic team) and its early intervention unit based on the Early Start Denver Model. She dedicated her last years to the issue of autism screening, and how to improve its efficacy.

https://www.linkedin.com/in/sophie-carlier-22652015b/

 

For more information:

adt.autism@yahoo.com