Interviews are a most effective data collection technique for obtaining views and opinions held by people. They can sometimes be used to follow up responses obtained in a questionnaire. An interview provides the opportunity for an in-depth conversation with a particular person, where you can obtain detailed information, usually in the form of extended answers. Interviews are also invaluable for getting an expert opinion, or providing background to a decision (such as planning approval for a new supermarket).
It is the usual convention to secure formal consent from someone before conducting an interview with them. This could be by letter, e-mail, telephone or in person, but be sure to check with your teacher first, as you will be representing the school. Consent involves obtaining permission from a person for you to interview them, and agreeing a convenient time, date and location for the interview to take place. See Figure 1 for an example of a consent form.
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