Allows us to validate or falsify a theory...
This is an advantage because - Validation allows us to demostrate that a theory is correct, whilst falsification allows us to prove that a theory is incorrect so the theory can be discounted or amended according to the new evidence,=.
For example... Levinger & Clark investigated Freuds theory of repression. Freuds theory criticised due to his use of case studies and lack of scientific evidence. Theory states that anxiety provoking memories may be locked away in the unconscious of an individual in order to protect that individual from further harm. L&C found that emotionally neutral words could be recalled by pts than emotionally arosing words, the theory of repression was validated. Anxiety provoking info can be repressed.
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