Qualitative research methods like unstructured interviews are designed to allow a free and open conversation, with set topics to be explored but no set questions
Allowed more genuine two-way interaction and development of trust and rapport, gaining deeper and more valid insights into respondents' viewpoints and the meanings/motives behind the abuse
Becker's unstructured interviews allowed him to explore the whole 'deviant career' of marijuana users in depth, from first trying the drug to becoming regular users
Oakley's unstructured interviews with 55 women before and after having a baby allowed the participants to lead the conversation and share their own interpretations, rather than Oakley's views dominating
Oakley's research was criticised for causing harm due to the sensitive nature of the topic and the vulnerability of the participants at that time in their lives