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What Are the Differences Between a Structured Interview and an Unstructured Interview

Compare structured vs unstructured interviews. Learn the core differences, benefits, and when to use each to improve hiring accuracy.
Mohit Jain
December 19, 2025
8 MIN READ

Asking the right questions is the first step to find the right candidate. But do you choose a structured, standardized approach, or do you leave room for flexibility with an open-ended conversation? How you approach interviewing has an effect on fairness, consistency and successful hiring.

In this blog, we will cover the differences between structured vs unstructured interviews, their advantages and disadvantages, and under what circumstances you should use each one. By the end you will know clearly which approach best fits your hiring needs.

What Is a Structured Interview?

A structured interview is a standardized interviewing method where candidates are presented with randomized questions from a pre-designed question pool ensuring consistent difficulty and comprehensive skill coverage.

Characteristics of a Structured Interview

  • Aims to gather quantitative data
  • Follows a standardized format
  • Consists of a pre-defined set and type of questions
  • Close ended assessments
  • Interviewers are trained

Advantages of a Structured Interview

  • Easy to collect and compare data

Structured interviews provide a useful means of comparing candidates by assessing their responses to a common set of questions. Those methods, in turn, allow you to evaluate every candidate’s abilities and fit for the position. As the data is statistical, You Compare Responses Well Across all Candidates and Take a Wise Decision.

  • Minimises the Risk of Leaving Out Information

By interviewing the same group of questions to each candidate, the interviewer will be less likely to miss important or crucial areas. The structured interview style ensures that every candidate is assessed on the same grounds. Interviewers also usually take very detailed notes or even score the responses of candidates in structured interviews. Such an exercise helps to track information more easily, so nothing is missed or misread during the assessment process.

  • Reduces bias or favoritism:

Structured interviews contribute to a fair hiring process by providing each candidate with the same questions in the same sequence. This method encourages a more uniform and impartial assessment of all candidates.

  • Fill Multiple positions

Structured interviews are great when you’re hiring for several positions and have lots of applicants. They let you conduct interviews in a consistent, efficient way, so you can spot the top candidates to move forward in the hiring process.

  • Legal defensibility

A structured interview offers an advantage in legal defensibility, as it uses a pre-defined set of assessment questions, which reduces the likelihood of discrimination.

  • Enhanced Candidate Experience

A structured format ensures that the conversation flows in an organized way, which not only improves consistency but also enhances the overall interview experience for both the candidate and the interviewer.

Disadvantages of a Structured Interview

  • More preparation time needed

Structured interviews can take time to develop, as interviewers need to create, test, and review questions to ensure they accurately measure a candidate’s qualifications for the position.

  • Lack of in depth assessment

Structured interviews don’t leave much room for asking spontaneous follow-up questions or going off-script. Because of this, it’s harder to really get to know a candidate’s personality or understand what makes them unique.

  • Can Be Seen as Impersonal

These types of interviews can create a one-size-fits-all experience for candidates, which makes it harder for interviewers to judge how well a candidate would fit into the company culture.

  • Soft skill can be the Collateral damage

While structured interviews are great for measuring technical skills, they do not provide enough room for the candidate to be spontaneous, express themselves creatively, demonstrate emotional intelligence, or showcase problem-solving skills.

What Is an Unstructured Interview?

An unstructured interview is a flexible and informal interview method where the interviewer does not follow a predetermined set of questions. Instead, the conversation flows naturally, allowing the interviewer to explore topics based on the interviewee’s responses. This approach enables a deeper understanding of the candidate’s personality, experiences, and qualifications, making it particularly useful for assessing interpersonal skills and cultural fit.

Characteristics of an Unstructured Interview

  • No pre-determined questions
  • Informal approach
  • Flexible format
  • Lack of standardization
  • Descriptive in nature
  • Lack of uniformity

Advantages of an Unstructured Interview

  • Creates a personalised approach

Unstructured interviews give you the freedom to tailor your questions to each candidate, allowing you to better understand their unique strengths and skills.

  • Assess soft skills

This flexible format offers a great opportunity to observe soft skills like body language, communication style, and overall demeanor, which are harder to gauge in more rigid interview types.

  • Casual and Conversational Nature

The laid-back atmosphere often makes candidates feel more comfortable, encouraging them to open up and give more authentic, insightful answers.

  • Enhanced Rapport Building

Because the conversation isn’t bound by strict questions, it’s easier to build a connection with the candidate, fostering trust and making them feel at ease during the process.

Disadvantages of an Unstructured Interview

  • Make it challenging to compare candidates

Without a set structure, it becomes difficult to measure candidates against the same standards. This can lead to inconsistent evaluations, making it hard to compare them fairly.

  • Can lead to unintentional bias

The open-ended nature of these interviews can sometimes lead to unconscious biases influencing the way candidates are judged.

  • Time-consuming

Unlike structured interviews, unstructured ones are more unpredictable and can drag on longer, making them less efficient, especially when you have a lot of candidates to interview.

  • Limited legal defensibility

Because unstructured interviews don’t follow a standard procedure, they can be more vulnerable to challenges, particularly if a candidate feels unfairly treated.

  • Potential for incomplete assessment

The lack of a formal process can result in important aspects of a candidate’s qualifications being overlooked or not fully explored.

Some key Differences Between Structure & Unstructured Interview


Distinguishing factors Structured interview Unstructured interview
Sequence Defined interview sequence Does not follow any interview sequence
Soft skills It’s not always easy to assess soft skills in a structured interview. In an unstructured interview, you can gauge soft skills by observing the candidate’s body language, facial expressions, emotions, and other non-verbal cues.
Types of question Close ended questions Open-ended questions
Purpose To assess specific skills, qualifications, and experience. To assess personality, cultural fit, and interpersonal skills.
Interview duration Typically shorter and focused. Usually longer and more informal.
Consistency High consistency across candidates. Low consistency due to varying questions.
Objectivity More objective due to the structured format. Less objective; prone to interviewer biases.
Flexibility Less flexible; all candidates are asked the same questions. Highly flexible; can adapt to the conversation.
Bias Lower risk of interviewer bias, as all candidates are asked the same questions. Higher risk of bias due to subjective judgment and inconsistent questions.
Ease of evaluation Easier to compare candidates objectively based on the same criteria. Harder to compare candidates due to different question sets.
Time Takes less time as questions are pre-set and focused. Takes more time, as the conversation can evolve.
Preparation Requires more preparation in terms of formulating questions. Less preparation required.
Candidate Interaction Formal, with limited room for casual conversation. More informal, with the possibility of a relaxed conversation.
Appropriateness Best for assessing technical skills and qualifications. Best for assessing cultural fit, personality, and creativity.
Adaptability Less adaptable; limited to the set questions. Highly adaptable; can change based on the candidate’s responses.
Legal and Compliance Risk Lower risk as it ensures fairness and consistency. Higher risk of legal issues due to potential biases and inconsistency.
Used By Large organizations, high-volume recruitment, and when fairness is crucial. Small companies or creative roles, for roles requiring cultural fit or innovation.

Should You Use Structured, Unstructured, or Both?

If you’re looking for consistency, fairness, and an objective approach, structured interviews are the way to go—especially for roles where specific skills and qualifications matter the most. On the other hand, if you want to get a better sense of a candidate’s personality, interpersonal skills, and how they might fit into your company culture, unstructured interviews offer more flexibility and allow for a more natural conversation. If you’re unsure, a semi-structured interview might be the perfect middle ground, giving you the best of both worlds—some structure for consistency, along with room for deeper insights.

At FloCareer, we specialize in Interview-as-a-Service, offering a comprehensive platform that streamlines your hiring process. Our services include AI-powered sourcing, resume screening, and online assessments, all designed to help you identify and hire top talent efficiently. By leveraging our platform, you can enhance your recruitment strategy, ensuring you select candidates who align with your company’s needs and culture.

FAQ

What are unstructured interviews Best For?

Unstructured interviews are best for exploratory research, building rapport with the interviewee, and gaining in-depth insights into the interviewee’s thoughts, emotions, and experiences.

What Are the Six Types of Structured Interview Questions?

Situational questions, job knowledge questions, behavioral questions, background questions, competency questions, resume questions.

What Are the 3 Types of Interview Structures?

Structured interview, unstructured interview and semi-structured interview.

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