%0 Electronic Book %A Cooper, Joel %I SAGE %D 2007 %C Los Angeles, Calif. ; London %G eng %@ 9781446214282 ebook %T Cognitive dissonance fifty years of a classic theory %U http://sk.sagepub.com/books/cognitive-dissonance %U https://finna.fi/Record/jykdok.1236065 %X Cognitive dissonance has been an important and influential theory since Leon Festinger published his classic work in 1957. Here, Joel Cooper presents a comprehensive analysis of the state of dissonance theory, charting the progress of the theory and assessing its impact. %K Cognitive dissonance