Adults are assigned to one of two activities before completing a proofreading task. One group takes a brisk 10-minute walk and the other group sits quietly for 10 minutes. Each adult is then given four minutes to identify spelling errors in the same 500-word article. The researcher records the number of errors correctly identified.
State a null hypothesis for this experiment.
182 exam-style questions on OCR GCSE Psychology 7.1 Planning Research, covering 7.1.1 Hypotheses, 7.1.2 Variables, 7.1.3 Experimental Designs, 7.1.4 Populations and Sampling, 7.1.5 Ethical issues, and 7.1.6 Dealing with ethical issues and BPS Code. Each one has a worked solution and a mark scheme showing where the marks go.