e most widely used types of interviewing are: The telephone prescreen interview. The direct one-on-one interview, which can take a behavioral, competency-based or situational approach. The panel interview. Questions tend to be open-ended, which can enable the candidate to disclose more than he or she might if asked closed-ended questions requiring only a brief answer. In addition, questions in an unstructured interview can be tailored according to an applicant's skills and experience levels. However, the absence of structure may make it difficult to compare and rank applicants because they are not asked the same set of questions.