20. (a) A researcher, interested in the effects of overcrowding on trains, conducts a study comparing the

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20.

(a) A researcher, interested in the effects of overcrowding on trains, conducts a study comparing the stress experienced by commuters with that experienced by leisure travellers. Stress is measured using a heart-rate monitor at the end of each journey.

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Statistics Without Maths For Psychology

ISBN: 9781292128856

7th Edition

Authors: Chistine Dancey, John Reidy

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