Aging and illusory correlation in judgments of co-occurrence

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Social Cognition

Background:

• Illusory correlation describes the tendency to overestimate the co-occurrence of two distinct events.
• Preexisting expectancies can influence judgments of event co-occurrence, potentially leading to biases.
• Aging may impact cognitive processes involved in judgment and memory, potentially altering susceptibility to biases.

Purpose of the Study:

• To investigate the influence of aging on illusory correlation in judgments of event co-occurrence.
• To examine how salient versus nonsalient information about true probabilities affects age-related judgment biases.

Main Methods:

• Participants (older and younger adults) judged the co-occurrence probability of events.
• Participants received either nonsalient or salient information about the true probabilities.
• Preexisting expectancies were manipulated to assess their influence on judgments.

Main Results:

• When co-occurrence information was nonsalient, preexisting expectancies strongly influenced judgments in both age groups.
• When co-occurrence information was salient, younger adults adjusted judgments more accurately to probabilistic data than older adults.
• A significant age difference in adjusting to salient information was observed.

Conclusions:

• Aging may exacerbate illusory correlation bias, particularly when current information is not salient.
• Age-related changes in memory and judgment processes may underlie the observed differences in adjusting to salient information.
• Understanding these age-related cognitive shifts is crucial for interpreting social judgments in older adults.