Which interview tactic lacks preplanning or prepared questions?

The unstructured interview tactic is characterized by its lack of a predetermined set of questions or a formal structure. In this approach, the interviewer engages in a more spontaneous conversation, allowing the dialogue to flow naturally based on the responses of the interviewee. This flexibility can lead to more in-depth responses and insights, as the interviewer can adapt to the direction of the conversation rather than sticking rigidly to a script.

In contrast, structured and formal interviews involve thorough preplanning, where specific questions are formulated ahead of time to ensure consistency and comprehensiveness in gathering information. Semi-structured interviews blend elements of both, incorporating preplanned questions while allowing for follow-up queries based on the interviewee's answers. The unstructured format stands out because it prioritizes an organic interaction over a checklist of questions.