The Selective Laziness of Reasoning

Area of Science:

• Cognitive Psychology
• Decision Making
• Reasoning Research

Background:

• Existing reasoning research indicates a discrepancy in evaluation standards between one's own arguments and others'.
• This suggests a potential cognitive bias where individuals apply less scrutiny to their own output.

Purpose of the Study:

• To empirically demonstrate the phenomenon of "selective laziness" in argument evaluation.
• To investigate whether individuals apply more stringent criteria when evaluating others' arguments compared to their own.

Main Methods:

• Two experiments employed a choice blindness manipulation.
• Participants generated arguments for reasoning problems and subsequently evaluated others' arguments on the same problems.
• Own arguments were surreptitiously presented as others' for evaluation.

Main Results:

• Over half of participants (56% and 58%) rejected their own arguments when led to believe they were evaluating someone else's.
• Participants were more prone to reject their own invalid arguments than valid ones.
• This indicates a higher critical threshold for evaluating external arguments.

Conclusions:

• Individuals exhibit "selective laziness," being more critical of others' arguments than their own.
• This bias affects argument evaluation, with people better distinguishing valid from invalid arguments when they are not their own.
• The findings highlight a specific aspect of cognitive bias in reasoning and self-perception.