There are several strategies to minimize interviewer bias:
Blinding: Blinding interviewers to the participants' disease status or exposure status can help reduce bias. Standardized questions: Using a structured questionnaire with standardized wording can minimize variations in how questions are asked. Training: Proper training of interviewers on the importance of neutrality and consistency can reduce the risk of introducing bias. Pilot testing: Conducting a pilot study to identify potential sources of bias and refining the interview protocol accordingly.
