A cognitive psychologist conducted a study to investigate whether learning with immersive virtual reality (VR) headsets leads to higher test scores compared to traditional textbook reading.
Twenty students were randomly allocated to either the VR group (Condition A) or the textbook group (Condition B). After a 30-minute study session, all participants completed a comprehension test scored out of 50.
The researcher decided to use an unrelated t-test to analyse the raw data from this study.
Explain three reasons for this choice in the context of this study.
121 exam-style questions on AQA A Level Psychology Inferential testing (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.