Questionnaires can be used to gather large amounts of quantitative data on crime and deviance through representative sampling. However, they have limitations such as only providing a snapshot of information and potentially low validity if subjects do not answer truthfully. There are also ethical issues around using questionnaires with minors or on sensitive topics. Positivists prefer the use of questionnaires for research as they produce reliable and representative results, while interpretivists are critical of their ability to capture valid meanings and experiences.