the biological approach aims to explain all behaviour as a product of biological proccesses and factors such as hormones and neurone responce in the brain.
Strengths,
Everyone has a brain so it applies to everyone, suchs as sperys study of the effects of a commissurcetomy so the same effects would apply to all people. use of precise equipment and technology means that we will have a accurate results from testing.
Weaknesses.
Cost, studies in the biological approach can be expensive as high quality equipment is needed, E.g dement and kleimans study on dreams the equipment was expensive to monitor dreams and sleep. low ecological validity
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