A neuropsychologist conducts an experiment to investigate whether the consumption of a polyphenol-rich blueberry drink improves spatial memory in adolescents compared to a placebo drink. Spatial memory performance is assessed by recording the number of errors made by each participant in a virtual water maze task. What is the dependent variable (DV) in this study?
The age of the adolescent participants
The type of drink consumed (polyphenol-rich blueberry drink versus placebo)
The number of errors made in the virtual water maze task
The time of day the testing takes place
644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.