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Related Experiment Videos

Does the Conners' Continuous Performance Test aid in ADHD diagnosis?

R A McGee1, S E Clark, D K Symons

  • 1Child and Adolescent Mental Health Services, Valley Regional Hospital, Kentville, Nova Scotia, Canada. robin.mcgee@ns.sympatico.ca

Journal of Abnormal Child Psychology
|December 2, 2000
PubMed
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The Conners' Continuous Performance Test (CPT) may misidentify children with reading disorders as having ADHD. Phonological awareness measures are crucial for accurate differential diagnosis in children.

Area of Science:

  • Neuropsychology
  • Developmental Psychology
  • Educational Psychology

Background:

  • The Conners' Continuous Performance Test (CPT) is widely used to assess attention deficits.
  • Distinguishing between Attention-Deficit/Hyperactivity Disorder (ADHD) and Reading Disorders (RD) can be challenging.
  • Previous research has not fully explored the overlap and distinctions between ADHD and RD using comprehensive neuropsychological measures.

Purpose of the Study:

  • To examine the performance of clinic-referred children on the Conners' CPT and other cognitive measures.
  • To investigate the utility of the Conners' CPT in the differential diagnosis of ADHD versus RD.
  • To identify cognitive factors that differentiate children with ADHD from those with RD.

Main Methods:

  • 100 clinic-referred children aged 6-11 were assessed.

Related Experiment Videos

  • Measures included the Conners' Continuous Performance Test (CPT), Auditory Continuous Performance Test (ACPT), phonological awareness, visual processing speed, and visual-motor competence.
  • A 2x2 MANCOVA was used to compare ADHD and RD groups, controlling for age and socioeconomic status.

    • Main Results:

    • The Conners' CPT overall index was not correlated with visual processing or visual-motor skills.
    • Phonological awareness measures predicted variance in Conners' CPT parameters, suggesting potential false positives in RD children.
    • Children with RD, not ADHD, showed higher Conners' CPT scores; phonological measures differentiated RD from ADHD and other clinical groups.

    Conclusions:

    • The Conners' CPT alone has limited utility for the differential diagnosis of ADHD in children.
    • Phonological awareness is a critical factor in distinguishing RD from ADHD.
    • Clinicians should consider phonological assessments alongside CPT to avoid misdiagnosis.