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Related Experiment Video

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Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning
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Evaluating Decision-Making: Validation and Regression-Based Normative Data of the Judgment Assessment Tool.

Frédérique Escudier1, Edith Léveillé1, Simon Charbonneau2

  • 1Psychology Department, Université du Québec à Montréal, Montréal, QC, Canada.

Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists
|May 20, 2016
PubMed
Summary

The Judgment Assessment Tool (JAT) reliably measures judgment in healthy adults and those with Alzheimer's disease (AD). This validated tool assesses solution generation and option assessment, crucial for decision-making.

Keywords:
Alzheimer's diseaseDementiaExecutive functionNeuropsychological assessmentNeuropsychological testsProblem solving

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Area of Science:

  • Neuropsychology
  • Cognitive Psychology
  • Psychometrics

Background:

  • Judgment is a critical cognitive function essential for effective decision-making.
  • Existing tools may not adequately capture the multifaceted nature of judgment, particularly its initial stages.
  • Understanding judgment deficits is crucial for diagnosing and managing neurodegenerative conditions.

Purpose of the Study:

  • To develop and validate the Judgment Assessment Tool (JAT).
  • To assess the reliability and construct validity of the JAT in measuring judgment.
  • To evaluate the JAT's performance in healthy controls (HC) and individuals with mild Alzheimer's disease (AD).

Main Methods:

  • The JAT underwent expert review and pilot testing in Study 1.
  • The final JAT version was administered to 120 HC and 24 mild AD participants in Study 2.
  • Neuropsychological evaluations were conducted on older HC and AD participants.

Main Results:

  • The JAT demonstrated good internal consistency (Cronbach's a = 0.71 for HC, 0.85 for AD).
  • Adequate test-retest and excellent interrater reliability (k=0.92-0.93) were confirmed.
  • AD participants performed significantly worse than HC (Cohen's d = 1.79), indicating strong construct validity.

Conclusions:

  • The Judgment Assessment Tool (JAT) is a reliable and valid measure of judgment.
  • The JAT effectively differentiates judgment abilities between healthy individuals and those with mild AD.
  • The tool's findings support its use in clinical and research settings for assessing decision-making processes.