Historically, it was widely believed that diseases like cholera were spread by 'bad air' (the miasma theory). However, after John Snow mapped cholera cases to a water pump and Louis Pasteur published his work on micro-organisms, the scientific community underwent a major revolution, replacing the old framework with a new one based on germ theory.
With reference to this example, explain what is meant by a 'paradigm shift' in science.
Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 689 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
