As part of your study of social psychology, you will have designed and conducted a practical research investigation (for example, an experiment or questionnaire looking at conformity, obedience, or social influence).
Describe two modifications you could make to the design or procedure of this specific investigation, and explain how each modification would improve its validity or reliability.
88 exam-style questions on Edexcel A Level Psychology Research methods and skills, covering Research methods and skills. Each one has a worked solution and a mark scheme showing where the marks go.