Answers to in-text Questions

Caption Answer
What is the difference between information-gathering interviews such as the one pictured her and persuasive interviews? Is the difference always obvious to the person being interviewed?  Information-gathering interviews are intended to simply gain information from the other person. Persuasive interviews have influence as the final goal. It is not always obvious to the interviewee if the interviewer is gathering information or attempting to persuade them.
The person in this picture is reviewing application material before interviewing a job candidate. What are the other responsibilities of an interviewer before the interview?  In addition to reviewing application materials, the interviewer should also prepare questions and an interview outline, gather materials and begin the interview on time. 
If an interviewee arrives early for an interview, is it a good idea for him or her to catch up on rest while waiting?  No, this could backfire if you do not wake in time, or if you are seen sleeping it could communicate a lack of professionalism. Instead, use that time to use the restroom, have a drink of water, make sure your phone is off, or run through practice questions in your head.
Would keeping his hands clasped throughout the interview improve or diminish the interviewee's chances of being offered the position?  While he could be using worse body language such as slouching or tapping his leg, the man should be incorporating meaningful gestures and supporting interviewer comments with positive nonverbal feedback such as nodding and smiling. 
Is it the responsibility of the interviewer or the interviewee to bring a formal end to the interview?  It is the responsibility of the interviewer to bring the formal end to the interview.