A neuropsychologist is comparing the average neural recovery rate (RRR) of patients undergoing an intensive new therapy to those receiving standard care (SSS). They find that the recovery rate for the intensive therapy is several orders of magnitude greater than that of the standard care.
To report this relationship concisely in their research report, which mathematical statement should they use to show that R R\,R is 'much greater than' SSS?
R∝SR \propto SR∝S
R≈SR \approx SR≈S
R≫SR \gg SR≫S
R≪SR \ll SR≪S
513 exam-style questions on OCR A Level Psychology Data recording, analysis and presentation. Each one has a worked solution and a mark scheme showing where the marks go.