O'Reilly logo

The Psychology Book by

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

RG

IN CONTEXT

BRANCH

Social psychology

APPROACH

Attitude change

BEFORE

1956 Social psychologist Leon Festinger states his theory of cognitive dissonance, which posits that having inconsistent beliefs causes uncomfortable psychological tension.

1968 The My Lai Massacre of civilians in Vietnam takes place, possibly because US soldiers dehumanized victims to reduce cognitive dissonance.

AFTER

1978 Elliot Aronson devises the Jigsaw method of learning, involving highly interdependent small-group learning, to reduce prejudice and violence at school.

1980s Psychologists argue that dissonance experiments may not reflect real attitude changes, but a desire to seem consistent ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required