Final answer:
An interview is a one-on-one conversation between a researcher and a subject, allowing for open-ended questions and detailed responses. It is a method of collecting data on a topic.
Step-by-step explanation:
An interview is a one-on-one conversation between the researcher and the subject, which is a way of collecting data on a topic. It is similar to open-ended questions on a survey, but participants are free to respond as they wish. The questions are not limited to predetermined choices and participants can provide detailed and candid responses. Interviews can be conducted in-person, over the phone, or remotely.