A psychologist places participants either 2 metres or 4 metres from a floor target. Each participant makes 20 beanbag throws, and the number landing inside the target is recorded. Identify the IV and the DV. Name one feature of the beanbag or floor target that should be standardised.
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.