Outline and critically evaluate the methods psychologists use to investigate human behaviour.

To answer this question an understanding of the main methods which psychologist use must be clear, and the strengths and weaknesses of such methodology must be identified with examples. Psychology means the study of the mind, with psycho meaning mind and logy meaning science (from Carlson and Buskist, 1997).

Psychology is a subject devoted to the understanding of human thoughts, feelings and actions. In fact psychology is really a scientific study of behaviour. Psychology is a science, just like physics and chemistry; psychology goes about finding the answer to a question by observed means….(short extract)