A researcher is conducting a face-to-face laboratory experiment to investigate if the post-event verb used in a question (e.g., 'smashed' vs 'hit') affects participants' estimated speed of a vehicle in a recorded video.
Investigator effects may influence the results of this study. Explain how the researcher could modify the procedure to reduce these investigator effects.
Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 689 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
