What type of interview typically requires candidates to elaborate on their educational background and skills?

The correct choice focuses on the depth interview, which is designed to delve into the candidates' experiences, educational background, skills, and qualifications. This type of interview allows the interviewer to ask open-ended questions that encourage candidates to provide detailed responses, thus offering deeper insights into their capabilities and how their background aligns with the job requirements.

Depth interviews facilitate a comprehensive understanding of candidates beyond their resumes, enabling interviewers to assess not only the candidates' knowledge and skills but also how their educational experiences have shaped their professional competencies. This thorough exploration is crucial for evaluating whether candidates are a good fit for the role and the organization.

In contrast, other interview types, such as stress interviews, aim to observe candidates' reactions under pressure and do not focus intensely on educational background or skills. Group interviews involve multiple candidates in a shared setting, making it challenging to gauge individual educational experiences and skills comprehensively. Informal interviews may lack the structured approach necessary to deeply review a candidate's qualifications. Thus, depth interviews stand out as the most suitable format for assessing candidates' educational backgrounds and skill sets in detail.