Amara and Leo are undertaking a practical investigation using a questionnaire into in-group favouritism among supporters of two rival football clubs in their city. Explain how Amara and Leo could design their questionnaire to collect quantitative data. You must refer to Amara and Leo's study of in-group favouritism in your answer.
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.