A marine biologist is investigating the impact of tourist vessel noise on the vocalization patterns of a resident pod of bottlenose dolphins in a specific bay. They initially conduct their study by analyzing public-access acoustic recordings uploaded to an online marine library by various recreational divers and commercial tour operators over the past decade (secondary data).
State three ways in which collecting primary data would have improved this scientific investigation.
235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.