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A Method for Investigating Age-related Differences in the Functional Connectivity of Cognitive Control Networks Associated with Dimensional Change Card Sort Performance

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Individual differences in adult decision-making competence.

Wändi Bruine de Bruin¹, Andrew M Parker², Baruch Fischhoff¹

¹Department of Social and Decision Sciences, Carnegie Mellon University.

Journal of Personality and Social Psychology

|May 9, 2007

Summary

This study validates the Adult Decision-Making Competence (A-DMC) index, showing it reliably measures decision-making skills. Higher A-DMC scores correlate with better life outcomes and fewer negative events.

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Area of Science:

Psychology
Behavioral Science
Cognitive Science

Background:

Assessing adult decision-making competence is crucial for understanding real-world outcomes.
Existing measures may lack comprehensive reliability and validity across diverse populations.

Purpose of the Study:

To evaluate the reliability and validity of seven behavioral decision-making tasks.
To develop and validate an Adult Decision-Making Competence (A-DMC) index.

Main Methods:

Administered seven distinct behavioral decision-making tasks to diverse adult populations.
Aggregated task performance into an A-DMC index.
Assessed convergent and predictive validity using measures of socioeconomic status, cognitive ability, decision-making styles, and decision outcomes.

Main Results:

Consistent performance was observed across the seven tasks and within individuals.
The aggregated A-DMC index demonstrated good internal reliability.
A-DMC showed significant relationships with socioeconomic status, cognitive ability, and decision-making styles.
Higher A-DMC scores predicted fewer negative life events, even after controlling for covariates.

Conclusions:

The seven tasks and the A-DMC index are reliable and valid measures of decision-making competence.
A-DMC is a distinct construct that is relevant to adults' real-world decision-making and life outcomes.