Conducting Effective Student Interviews for Educational Assessment

When it comes to evaluating student learning, written tests and assignments have long been the default. They’re familiar, scalable, and easy to standardize. But they have a significant blind spot: they capture what students can recall or produce in writing, not necessarily how well they actually understand or can articulate the material. That’s where student interviews step in as a powerful alternative assessment tool. Used thoughtfully, interviews give educators a direct window into how students think – not just what they’ve memorized. This post explores why interviews deserve a place in educational assessment, the different forms they take, how to conduct them well, and the challenges you’ll need to navigate.

Why use interviews in education? 🔗

Traditional assessments like multiple-choice tests or written exams have well-documented limitations. A student might fail a written exam not because they lack understanding, but because of test anxiety, language barriers, or poor question interpretation. Interviews sidestep many of these issues by allowing students to demonstrate understanding in their own words, in real time.

According to Faculty Focus, student interviews are a highly effective alternative or supplemental assessment method – one that students themselves find valuable. Unlike static written assessments where one format must fit all students, interviews allow for on-the-spot tailoring and adjustment, giving educators a much fuller picture of what a student knows and how they reason through problems.

Research backs this up. A systematic review published in Assessment & Evaluation in Higher Education found that over a quarter of students showed meaningful discrepancies between their written exam scores and the depth of understanding they displayed in oral interviews – with interviews revealing more nuanced comprehension. In other words, some students know more than their written tests suggest, and interviews can surface that.

Beyond measuring what students know, interviews serve several other important functions:

• Personalized feedback: The one-on-one format lets educators identify individual strengths and gaps, then address them immediately.
• Mentoring opportunities: As noted by Faculty Focus researchers, interviews allow instructors to compliment, assist, correct, and demonstrate genuine interest in each student’s learning journey.
• Authentic assessment: Research published in the Journal of Early Childhood Teacher Education highlights that interviews double as authentic tasks – students are practicing real-world skills like articulating ideas under pressure, which mirrors job interviews and professional conversations they’ll face after graduation.
• Academic integrity: In the age of AI-generated essays and answers, oral interviews require spontaneous, real-time responses that are far more difficult to fabricate or outsource.

Types of interviews: structured vs. unstructured 🔗

Not all student interviews look the same. The two primary formats – structured and unstructured – serve different purposes and come with different trade-offs.

Structured interviews 🔗

A structured interview uses a fixed set of predetermined questions asked in the same order to every student. Responses are evaluated against a consistent rubric. The goal is comparability: every student gets the same opportunity to demonstrate their understanding under the same conditions.

The advantages are significant. Because all students are asked the same questions, it becomes much easier to compare performance across participants. Research published by the National Institutes of Health confirms that structured interviews have higher inter-rater reliability and are less prone to biased or leading questions. Meta-analyses cited by eSkill show that structured interviews nearly double the predictive validity of unstructured ones when it comes to assessing competence.

In educational settings, a structured format works well when you need to assess specific learning outcomes across a large group – for instance, checking whether all students in a course have grasped core concepts before moving to the next unit.

Unstructured interviews 🔗

An unstructured interview is more like a guided conversation. There are no fixed questions; instead, the educator follows the student’s responses, probing further where needed. This format is flexible and exploratory, making it valuable when the goal is to understand a student’s overall learning experience, attitudes, or challenges.

The upside is depth. Unstructured interviews often yield rich qualitative data that structured formats miss – a student might reveal a fundamental misconception, or an unexpected insight that a rigid question set would never uncover. The downside is that responses are harder to compare across students, and the data is more time-consuming to analyze. There’s also greater risk of subjective interpretation, since different educators may assess the same response differently without a shared rubric.

In practice, many educators opt for a semi-structured approach – a defined set of core questions with room to probe interesting responses further. This balances consistency with the flexibility to follow the student’s thinking wherever it leads.

Best practices for conducting student interviews 🔗

A well-run student interview doesn’t happen by accident. Here are the key practices that separate effective interviews from ones that generate unreliable or misleading data.

Prepare intentional questions in advance 🔗

Edutopia recommends starting with the unit’s learning targets and crafting questions that directly connect to those targets. A good sequence moves from simpler recall questions (“What did you notice about…?”) to higher-order thinking questions (“Why do you think…?” or “What would you predict if…?”). Having this structure in place – even for unstructured interviews – keeps the conversation productive and ensures you’re collecting evidence of actual learning, not just general impressions.

Use clear rubrics to reduce subjectivity 🔗

One of the most effective ways to minimize bias and ensure consistency is to use a behaviorally anchored rating scale (BARS) – a rubric that describes, for each question, what a poor, adequate, and strong response looks like. Assessment researchers at Cogn-IQ note that anchored rating scales substantially reduce the variation in how different educators evaluate the same answer, making the process more reliable and defensible.

Document everything 🔗

Whether you take detailed notes or record the conversation (with the student’s consent), documentation is essential. It lets you revisit responses, ensures nothing important is overlooked, and provides a record if assessment decisions are ever questioned. Instructional coach Andrew Miller, writing for Edutopia, prefers paper and pencil to a laptop for note-taking, finding it keeps his attention on the student rather than on data entry.

Stay on schedule and maintain consistency 🔗

Faculty Focus researchers recommend using a stopwatch or timer to keep interviews to their allotted length, leaving a few minutes between sessions so the interviewer stays attentive and fresh. If using a structured format, stick to your predetermined questions. If using an unstructured format, ensure that despite the conversational flow, you cover the same key topics with each student so that comparisons remain meaningful.

Create a comfortable environment 🔗

Assessment in Higher Education advises explaining to students exactly what will happen during the interview beforehand, and offering practice opportunities where possible. Familiarity with the format significantly reduces anxiety, and a student who is comfortable is far more likely to demonstrate their actual level of understanding.

Challenges in educational interviews 🔗

Interviews are a powerful tool, but they come with real challenges that educators need to plan for – not work around after the fact.

Time constraints 🔗

The most commonly cited barrier to using student interviews is time. A 2025 article in Educational Researcher notes that unlike written exams where all students can be assessed simultaneously, oral assessments require each student to be interviewed individually and sequentially – making it significantly more resource-intensive, especially in large classes.

Practical solutions include conducting small-group interviews (three to four students together), using video or virtual platforms to conduct interviews asynchronously, limiting interviews to high-stakes checkpoints rather than every unit, or combining interviews with other assessment methods to balance the workload. Faculty Focus researchers found that in some courses, brief five-minute interviews per student were sufficient – and that the face-to-face feedback time actually replaced what would have been spent writing lengthy written critiques.

Subjective interpretation 🔗

Even experienced educators can interpret the same student response differently. Factors like a student’s confidence, fluency of expression, accent, or social ease can unconsciously color the assessor’s judgment – a form of bias that peer-reviewed research in PMC links to the halo effect, confirmation bias, and similarity bias. Unstructured interviews are particularly vulnerable to these pitfalls.

The solution is not to abandon interviews but to structure the evaluation process carefully. Using standardized rubrics, training multiple assessors to rate the same responses, and reviewing recordings before finalizing grades all help reduce the influence of first impressions and unconscious bias.

Student anxiety 🔗

Some students find oral assessments significantly more stressful than written ones. Research on oral assessments in higher education shows that anxiety is often linked to unfamiliarity with the format – and that it tends to decrease substantially once students have experience with it. Giving students a clear explanation of the format, sample questions to prepare, and at least one low-stakes practice session goes a long way toward leveling the playing field between more and less verbally confident students.

It’s also worth noting that for some learners – including students with certain disabilities – oral formats are actually preferred over written ones, as they remove barriers related to writing speed, spelling, or physical access to written formats.

Making student interviews work in practice 🔗

Student interviews are not a replacement for all other forms of assessment – they work best as part of a broader strategy. Used alongside written assignments, projects, or portfolios, they add a qualitative layer of insight that no other assessment method can provide. They help educators understand not just where a student lands on a grade scale, but how that student thinks, where their understanding breaks down, and what kind of support they actually need.

As Inside Higher Ed puts it, assessment should not simply be about assigning grades – it should be a continuous process of identifying where students are in their learning and helping them move forward. Student interviews, done well, are one of the most direct ways to do exactly that.

What do you think? If you’ve experienced assessment primarily through written exams, how do you think being assessed through a conversation would change what you’re able to show about your understanding? And for educators: what’s the biggest practical barrier you face in incorporating student interviews into your assessment practice?

References

1. https://www.facultyfocus.com/articles/educational-assessment/using-student-interviews-to-assess-and-mentor-students/
2. https://www.tandfonline.com/doi/full/10.1080/02602938.2025.2504621
3. https://www.tandfonline.com/doi/abs/10.1080/10901020903320403
4. https://pmc.ncbi.nlm.nih.gov/articles/PMC9553626/
5. https://www.eskill.com/resources/blog/how-to-use-structured-interviews
6. https://www.edutopia.org/article/3-tips-using-conversations-assessment/
7. https://www.cogn-iq.org/blog/structured-vs-unstructured-interviews/
8. https://assessmentinhe.wordpress.com/2023/03/25/oral-examinations/
9. https://journals.sagepub.com/doi/10.3102/0013189X251333638
10. https://www.insidehighered.com/advice/2015/06/10/essay-how-talk-about-assessment-faculty-job-interviews