Structured - When there is a fixed set of questions and responses
Advantages - Using the same q's makes the it standardised, replicable and easy to compare
Disadvantages - Cannot ask questions - Prevent from clarifying questions
Semi-structured - Interviewer given guidelines on questions
Advantages - Allows extra questions to be asked - Able to clarify misunderstanding
Disadvantages - Extra questions may vary between participants, making comparison hard
Unstructured - No fixed questions or ways of answering
Advantages - Allows for more depth and interesting topics to be discussed
Disadvantages - Can be difficult to compare responses from different participants
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