title: Development and Validation of a Modified Multiple Errands Test for Adults with Intellectual Disabilities.
abstract: BACKGROUND
  The aims of the current study were to adapt a version of the MET for people with intellectual disabilities and assess its ecological and construct validity.
  
  
  METHODS
  Using a correlational design, 40 participants with intellectual disabilities were invited to complete a battery of neuropsychological assessments and the modified Multiple Errands Test for Intellectual Disabilities (mMET-IDs).
  
  
  RESULTS
  The ability to successfully complete tasks on the mMET-IDs correlated significantly with measures of the Supervisory Attentional System, namely, the Tower of London Test and the Six Parts Test. However, performance on the mMET-IDs and the Six Parts Test could be accounted for by Verbal IQ and receptive vocabulary. The mMET-IDs failed to correlate with the DEX-IR.
  
  
  CONCLUSIONS
  The mMET-IDs can be successfully used to assess some aspects of the Supervisory Attentional System in people with intellectual disabilities. Further development is needed, however, to improve the ecological validity of the mMET-IDs.
authors.affiliation: Norfolk Community Health and Care NHS Trust, Norwich, Norfolk, UK.|Norwich Medical School, University of East Anglia, Norwich, Norfolk, UK.
authors.forename: Tom
authors.initials: T
authors.lastname: Steverson
authors.affiliation: Centre for Clinical Neuropsychology Research, Psychology, University of Exeter, Exeter, UK.
authors.forename: Anna-Lynne R
authors.initials: AR
authors.lastname: Adlam
authors.affiliation: Tizard Centre, University of Kent, Canterbury, UK.|Broadland Clinic, Hertfordshire Partnership University NHS Foundation Trust, Norwich, Norfolk, UK.
authors.forename: Peter E
authors.initials: PE
authors.lastname: Langdon
keywords: MET-IDs; Multiple Errands Test; dysexecutive syndrome; executive function; learning disabilities; neurodevelopmental disabilities