A psychologist studies pupils taking part in a 15-minute group discussion. In some groups, pupils sit around a circular table. In other groups, pupils sit in a straight row. An observer records the number of spoken comments about the discussion topic made by each pupil. Previous research gives no reason to expect either seating arrangement to produce more comments.
State the variable that is changed and the variable that is recorded in this investigation.
Using these variables, state the psychologist's alternative hypothesis.
State what the null hypothesis would predict about the pupils' comments. Include chance in your answer.
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.