Pre notification serves several crucial functions in epidemiological research:
Improves Response Rates: Informing potential participants ahead of time can significantly increase the likelihood of their participation. Enhances Data Quality: When participants are aware of what is expected, they are more likely to provide accurate and thoughtful responses. Reduces Non-Response Bias: By increasing participation rates, pre notification can help mitigate the bias that arises when certain groups are underrepresented in the study. Ethical Considerations: It respects the autonomy of participants by giving them the opportunity to make an informed decision about their participation.