Child and Adolescent Intellectual Disability Screening Questionnaire (CAIDS-Q) McKenzie & Paxton

1. Child and Adolescent Intellectual Disability Screening Questionnaire (CAIDS-Q)McKenzie & Paxton Dr Karen McKenzie

2. Contents • Why to we need a screening tool for adolescents with a learning disability? • What makes a good screening tool? • Description of the CAIDS-Q • Uses of the CAIDS-Q? • Developing the CAIDS-Q: Validity and reliability • Contact details

3. Why is there a need for a screening tool? • Policy recommendations have led to a demand on services to identify young people with an intellectual disability as early as possible e.g. in forensic settings • Full diagnostic assessments are expensive, time-consuming and need to be carried out by properly qualified, applied psychologist • Cost to individual and society if adequate support is not given

4. What makes a good screening tool? • Cost effective • Quick and simple to administer and score • Requires minimal training • Valid i.e. Measures what it sets out to measure • Reliable i.e. Gives consistent results across time and different users

5. Description of the CAIDS-Q • Has 7 items • Can be completed with/by the individual or by someone who knows him/her well • Takes 5-15 minutes to complete • Can be sent to referrers to complete • Easy to score • No training required • Covers age range 8-18 years

6. Uses The CAIDS-Q can potentially help to: • Quickly identify appropriate services for an individual • Avoid a long wait for initial assessment • Allow resources to be targeted at those who need them most • Identify people who may be vulnerable e.g. within criminal justice system • Provide a means for discriminating between groups for research purposes • Help GPs identify those with an intellectual disability within their practice

7. Developing the Questionnaire • Literature search for existing tools • Selecting the questions • Standardisation,Validity & Reliability • Easy to use • Research base

8. Standardisation • Developed to distinguish between those people who are typically referred to intellectual disability and child and adolescent mental health services • Also included a forensic sample

9. Validity • The CAIDS-Q score correlated significantly with WISC IV scores • The CAIDS-Q scores could discriminate between those with an intellectual disability and those without • A ROC analysis showed the CAIDS-Q could identify people with an intellectual disability with 97% accuracy and those without with 86% to 87% accuracy (depending on the age of the individual) • Small forensic sample (n=23) found CAIDS-Q correctly identified all those with and without an intellectual disability.

10. Reliability Inter-rater reliability was significant for each item on the questionnaire. (It was excellent for all 7 items)

11. References • McKenzie, K., Paxton, D., Murray, G.C., Milanesi, P., & Murray, A.L . (2012)The evaluation of a screening tool for children with an intellectual disability: The Child and Adolescent Intellectual Disability Screening Questionnaire. Research in Developmental Disabilities. 33, 1068-1075. • McKenzie, K., Megson, P. & Paxton, D. (2008) The development of a child learning disability screening questionnaire: A pilot study. Learning Disability Practice, 11(5), 18-22

12. For more information For more information contact GCM Records: enquiries@gcmrecords.co.uk Or Karen McKenzie drkmckenzie@hotmail.com