A psychologist investigates whether copying out a 16-word list by hand or typing it affects how many of the words pupils recall. Each pupil spends one minute either copying out the list by hand or typing it, and then writes down as many of the words as they can remember.
State a null hypothesis for this investigation.
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.