A researcher conducted a laboratory experiment to investigate the effect of background noise (high vs. low volume) on short-term memory capacity. Participants were required to recall a list of 20 random digits. Outline what is meant by objectivity in scientific research and state how it applies to this experiment into short-term memory.
47 exam-style questions on OCR A Level Psychology How science works. Each one has a worked solution and a mark scheme showing where the marks go.