A researcher investigated the accuracy of eyewitness recall after an unexpected event. During a university seminar, an actor dressed as a delivery courier entered the room, delivered a package to the lecturer, and left after some brief dialogue.
Explain why the data collected by the researcher in this study is primary data.
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.