The correct answer to this open question is "No."
You have just driven to the Hewlett-Packard site in Corvallis to field-interview a programmer. You sit down in a conference room and begin asking the questions on your semi-structured interview script. Is this a field interview. This is not a field interview.
A field interview is a form of an interview that Human Resources specialists use as part of their recruitment process. This technique bases on asking open-end questions in order to let the candidate elaborate on their answers. It is not limited to a "yes" or "no." The HR people need t better know the candidate: its philosophy of life, its work ethic, its past experiences.