Dr. Chen conducted an overt structured observation of non-verbal turn-taking behaviors during group study sessions in a university library. Dr. Chen sat at the end of the study table holding a stopwatch and a grading rubric, visibly writing down notes on each student's gestures and eye contact during a single 45-minute evening session.
Explain two improvements that Dr. Chen could make to this investigation.
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.