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

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

• Dr Karen McKenzie

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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

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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

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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

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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

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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

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Developing the Questionnaire

• Literature search for existing tools
• Selecting the questions
• Standardisation,Validity Reliability
• Easy to use
• Research base

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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

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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 (n23) found CAIDS-Q
  correctly identified all those with and without
  an intellectual disability.

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Reliability

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

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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

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For more information

• For more information contact GCM Records
• enquiries_at_gcmrecords.co.uk
• Or Karen McKenzie
• drkmckenzie_at_hotmail.com