Author

Elliot Aronson

16 key ideas across 2 books, each explained in our own words.

Mistakes Were Made (But Not by Me)

IDEA 1
We justify mistakes to feel good
Tavris and Aronson argue that when people make mistakes, they usually justify them instead of admitting fault. This self-justification protects their self-image as good and competent, but stops them from learning.
IDEA 2
Dissonance drives self-justification
The engine of self-justification is cognitive dissonance: the discomfort of holding two clashing beliefs, such as I am smart and I made a foolish choice. People ease the discomfort by changing their story, not their behaviour.
IDEA 3
Small choices push us apart
The authors describe a pyramid of choice: two people start at the top, almost identical, and each small decision pushes them down opposite sides. After justifying each step, they end up far apart and certain.

IDEA 1
Situations shape strange behaviour
Aronson's First Law states that people who do crazy things are not necessarily crazy. He argues that strong situational pressures can lead ordinary people to act in surprising ways, so behaviour must be understood in context.
IDEA 2
People often conform to the group
Aronson describes experiments where people agreed with an obviously wrong group answer about line lengths. He explains that the desire to fit in or to be right can lead people to go along with others.
IDEA 3
Persuasion depends on source and message
Aronson explores how messages change minds, discussing credibility of the speaker, emotional appeals and repetition. He shows that the same message can persuade or fail depending on who delivers it and how.

Go deeper with Elliot AronsonAsk questions, argue with the ideas and practise using them, free.