Quantitative research
Quantitative research, like online surveys, tends to be more numbers-focused and can help to assess hypotheses from qualitative research. Adding a quantitative approach to qualitative research can provide a more holistic (and quantifiable) view of the subject matter you are researching (Chuck Miller, 2020). The goal of both quantitative and qualitative researchers is to discover the truth about the phenomena in which they are interested (Polit & Beck, 2018).
In the emergency department, we encounter many terminally ill patients with family members who are their primary caretakers. Regarding qualitative research, I would be interested in the following research question: How do family members of terminally-ill patients experience placing their terminally-ill family members on hospice care? Regarding quantitative research and the emergency department, I would be interested in the following research question: What relationship is between patient satisfaction scores and emergency department wait times?