An occupational psychologist wants to investigate the impact of workspace acoustics on worker productivity. They design a laboratory experiment to compare the effect of background noise type (continuous pink noise vs. intermittent office chatter) on the number of spelling and grammar errors made during a 15-minute proofreading task.
Evaluate the external validity of this study.
201 exam-style questions on OCR A Level Psychology Planning and conducting research. Each one has a worked solution and a mark scheme showing where the marks go.