Dr Sophia wants to research whether students solve complex algebraic equations with fewer errors when the equations are presented on a green background compared to a red background. She has asked you to help her design the experiment.
Explain the terms 'independent variable' and 'dependent variable', using Dr Sophia's research as an example.
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.