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Psychology and crime Example essay A ) Review theories of criminal behaviour There are three main theories of what causes criminal behaviour, biological theory, learning theory and a psychodynamic theory. The biological theory believes that criminal behaviour is determined by your genetic make-up. To investigate this many studies have been carried out on identical twins because if this theory is correct identical twins have the same genetic make-up, and therefore if one behaves criminally then the other should also do this. This it is referred to as concordance rates. Yoshimasu compared to the concordance rate between identical twins and non-identical twins. He found there was a much higher concordance rate for the identical twins and there was for the non-identical twins this suggests that your genetic make-up does have some influence on whether you act criminally or not. The biological theory also believes that brain activity can affect the likelihood of someone acting in...

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