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Adult executive functioning inventory (ADEXI): Validity, reliability, and relations to ADHD.

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|May 13, 2017
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Summary

The Adult Executive Functioning Inventory (ADEXI) shows promise as a brief screening tool for executive functioning deficits, particularly in working memory and inhibitory control. However, it is best used alongside other assessments due to low interrater reliability.

Keywords:
ADHDexecutive functionsinhibitionself-ratingsworking memory

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Area of Science:

  • Psychology
  • Neuroscience
  • Clinical Assessment

Background:

  • Executive functioning (EF) is crucial for daily life.
  • Existing EF measures can be lengthy.
  • A brief, targeted instrument for adult EF is needed.

Purpose of the Study:

  • To evaluate the psychometric properties of the Adult Executive Functioning Inventory (ADEXI).
  • To assess the reliability and validity of the ADEXI, a new 14-item EF rating scale.
  • To determine the ADEXI's utility in distinguishing adults with ADHD.

Main Methods:

  • Examined internal consistency and test-retest reliability of the ADEXI.
  • Assessed convergent and discriminant validity by comparing ADEXI scores with another EF instrument and neuropsychological tests.
  • Investigated the ADEXI's ability to differentiate adults with ADHD from controls.

Main Results:

  • ADEXI demonstrated high internal consistency and adequate test-retest reliability.
  • Convergent validity was supported, but convergent validity with neuropsychological tests was weak.
  • ADEXI effectively discriminated adults with ADHD, showing high specificity but low sensitivity.

Conclusions:

  • The ADEXI is a potentially valuable screening instrument for working memory and inhibitory control deficits.
  • Low interrater reliability suggests using multiple sources for ratings.
  • The ADEXI should complement, not replace, neuropsychological testing.