An interviewer's goal is to learn, not to talk. By dominating the conversation, as when the interviewer's question was twice as long as the answer, nothing is learned. A good rule of thumb is to limit your own speaking time to 10-15% to maximize information gathering.
Instead of asking leading questions that corner an interviewee, use open-ended prompts starting with 'how,' 'what,' or 'why.' This encourages expansive answers and genuine information gathering, whereas closed questions allow for simple, uninformative deflections, achieving no learning.
In a high-stakes interview, the interviewee used a 'pregnant pause' and spoke slowly instead of using filler words. This projected thoughtfulness and control. In contrast, the interviewer's rapid speech and verbal fillers undermined her credibility and ability to connect with her subject.