Information Processing at Successive Stages of Decision Making: Need for Cognition and Inclusion-Exclusion Effects

Area of Science:

• Cognitive Psychology
• Decision Science
• Consumer Behavior

Background:

• Decision-making involves complex information processing across multiple stages.
• Individual differences, such as need for cognition (NC), can influence information processing strategies.
• Existing techniques for measuring information processing needed integration for detailed analysis.

Purpose of the Study:

• To investigate how individual differences in need for cognition (NC) affect information processing during decision-making stages.
• To examine strategy shifts between consideration set formation and final choice.
• To assess the impact of inclusion vs. exclusion mindsets on information processing.

Main Methods:

• Combined Levin and Jasper's (1995) phased narrowing technique with Huneke's (1996) software extension.
• 60 college students performed a computerized notebook computer selection task.
• Manipulated mindset (inclusion vs. exclusion) during consideration set formation.

Main Results:

• High NC individuals processed information with greater depth and breadth, particularly in the inclusion condition.
• High NC subjects' selections were of higher quality.
• No widespread strategy shifts were observed between decision stages, but high NC subjects showed better adaptive decision-making overall.

Conclusions:

• Need for cognition is a significant factor in adaptive decision-making and information processing depth.
• The inclusion mindset enhanced information processing focus and selection quality for high NC individuals.
• The integrated methodology effectively captured individual differences in information processing across decision stages.