Development and Validation of a Modified Multiple Errands Test for Adults with Intellectual Disabilities

Tom Steverson, Anna Lynne R. Adlam, Peter Langdon*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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. 

Material and 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.

Original languageEnglish
Pages (from-to)255-268
Number of pages14
JournalJournal of Applied Research in Intellectual Disabilities
Volume30
Issue number2
Early online date26 Jan 2016
DOIs
Publication statusPublished - Mar 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2016 John Wiley & Sons Ltd

Keywords

  • dysexecutive syndrome
  • executive function
  • learning disabilities
  • MET-IDs
  • Multiple Errands Test
  • neurodevelopmental disabilities

ASJC Scopus subject areas

  • Education
  • Developmental and Educational Psychology

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