Graduate-school interviews in Korea vary by university and department. Some programs use interviews or oral examinations only for shortlisted applicants, while others make them a central part of the selection process. Applicants should be prepared to explain their academic background, research interests, proposed methodology, reasons for choosing the program, professor fit, language ability, and future plans clearly and concisely.
Interview requirements vary by university and department.
Yonsei University’s 2026 international graduate admissions schedule, for example, included a separate notification for interview or performance-assessment candidates followed by an interview date. KAIST’s 2026 graduate admissions schedule also used a second-stage interview period, with details determined by the relevant department.
This means you should never assume the interview format from another student’s experience.
Check the current admissions guide, department notice, and any email sent specifically to shortlisted applicants.
ㅤ
Know the Format Before You Prepare
Confirm:
In-person or online / individual or panel / expected duration / interview language / whether a presentation is required / whether technical questions are included / whether you need to prepare slides
If the university does not provide these details, ask the graduate-school or department office rather than guessing.
ㅤ
Your Application Is the Interview Syllabus
Anything you submitted can become a question.
Read your own:
CV / transcript / statement of purpose / study plan / research proposal / publications / recommendation-related information
If you wrote that you used a particular methodology, software package, theory, dataset, or laboratory technique, be prepared to explain it.
An interview panel can quickly identify claims that the applicant cannot discuss in detail.
ㅤ
Common Question: Tell Us About Yourself
This is not an invitation to repeat your entire biography.
A strong graduate-school answer should connect your academic background to your reason for applying.
A useful structure is:
Current academic position → relevant research or professional experience → current research interest → why you are applying now
Aim for roughly one minute unless the interviewer asks for more detail.
ㅤ
Common Question: Why Do You Want to Study in Korea?
Avoid giving only tourism, entertainment, or cultural-interest answers.
Personal interest in Korea can be genuine, but a graduate-school interview should connect Korea to your academic or professional goal.
You might discuss:
Research infrastructure / professor expertise / industry ecosystem / Korean datasets or cases / regional specialization / academic network / career goal in Korea or Asia
The answer should explain why Korea makes sense for the degree you are pursuing.
ㅤ
Common Question: Why This University?
Do not answer only with ranking or prestige.
Identify specific academic reasons:
Department strengths / faculty / research centers / curriculum / laboratory / industry partnerships / methodological resources
The interviewer wants evidence that you chose the program deliberately rather than sending the same application everywhere.
ㅤ
Common Question: Why This Professor or Laboratory?
For research-intensive master’s and PhD programs, this can be one of the most important questions.
Be ready to explain:
Which part of the professor’s research interests you / how it connects with your background / what research direction you could develop / what skills you can contribute
Do not simply praise the professor. Demonstrate research fit.
ㅤ
Common Question: What Do You Want to Research?
Your answer should be more specific than a broad field name.
Instead of:
“I want to research AI.”
explain the problem, context, and possible approach.
For example:
“I am interested in how retrieval-augmented language models can improve domain-specific question answering in Korean legal documents, particularly where source traceability is important.”
The interviewer may then test whether you understand the problem deeply enough to pursue it.
ㅤ
Common Question: What Is Your Research Question?
If you submitted a research proposal, be able to state the central question in one or two sentences.
A complicated proposal that cannot be summarized clearly usually needs further refinement.
You should also be able to explain why the question matters and what gap it addresses.
ㅤ
Common Question: Why Is This Research Important?
Avoid simply saying that the topic is “very important.”
Explain the expected academic, technical, practical, policy, or social contribution.
For a PhD interview, the panel may push further and ask what is genuinely new compared with existing research.
ㅤ
Common Question: What Does the Literature Already Say?
You do not need to recite dozens of papers.
But you should know the core literature behind your proposal.
Be able to explain:
Major findings / important theories / commonly used methods / limitations / the gap your study addresses
If you mention a professor’s paper in your application, be prepared to discuss it accurately.
ㅤ
Common Question: What Methodology Will You Use?
This question tests whether your research plan is feasible.
Explain:
Data or participants / method / analysis / why the method fits the research question
The interviewers may challenge your method and ask why you did not choose an alternative.
Do not become defensive. Explain your reasoning and acknowledge reasonable alternatives.
ㅤ
Common Question: Where Will You Get the Data?
Data access is often where an ambitious proposal becomes unrealistic.
Be ready to discuss:
Participant recruitment / public or proprietary datasets / laboratory access / company data / archival material / language requirements / ethics approval
If access is uncertain, say so honestly and explain a realistic alternative plan.
ㅤ
Common Question: What Are the Limitations of Your Proposal?
This is not a trap.
Good researchers understand the weaknesses of their own designs.
You might discuss:
Sample size / generalizability / data access / measurement limitations / time / technical constraints
Then explain how you would reduce or manage those limitations.
ㅤ
Common Question: What Would You Do If Your Original Plan Does Not Work?
Graduate research rarely proceeds exactly as proposed.
The panel may want to see whether you can adapt.
Explain how you would revisit assumptions, adjust the method, seek additional data, or refine the question with your supervisor.
Flexibility is a research skill.
ㅤ
Common Question: Tell Us About Your Previous Research
Choose the project most relevant to the degree.
Explain:
Problem → your role → method → result → what you learned
Be precise about your own contribution, especially if the project involved a team.
Do not claim responsibility for work completed by someone else.
ㅤ
Common Question: What Was Your Contribution to This Paper?
If you list publications, interviewers may ask exactly what you did.
Be ready to distinguish:
Research design / experiments / coding / data analysis / writing / literature review / visualization / project management
Authorship without a clear explanation of contribution can create doubts.
ㅤ
Common Question: Why Are Your Grades Low in This Semester?
If your transcript contains a weak period, prepare a short factual explanation.
Do not spend several minutes making excuses.
Explain the context, what changed, and what evidence shows that you are now prepared for graduate-level work.
Then move the conversation back toward your strengths.
ㅤ
Common Question: Why Are You Changing Fields?
Career or academic transitions are not automatically a weakness.
Explain the bridge between your previous background and the new field.
For example, a computer-science applicant coming from economics might emphasize quantitative methods, programming, and research questions involving economic data.
The transition should look intentional rather than random.
ㅤ
Common Question: Why a Master’s Instead of a PhD?
Explain what you need at your current stage.
A master’s may be appropriate if you need deeper specialization, research training, or preparation before deciding on a doctorate.
Do not imply that a master’s is simply an easier route if you actually have no academic reason for choosing it.
ㅤ
Common Question: Why a PhD?
A PhD requires several years of sustained research.
Good answers usually involve a clear research goal, academic or advanced R&D career, or a problem that requires doctoral-level training.
“I want the title of doctor” is not a strong answer.
ㅤ
Common Question: What Do You Want to Do After Graduation?
Your future plan does not need to be fixed forever.
But it should show that the degree has a purpose.
Possible directions include:
Academia / postdoctoral research / corporate R&D / public policy / international organizations / entrepreneurship / employment in Korea / returning to your home country
Connect the graduate program to that direction.
ㅤ
Common Question: Do You Plan to Work in Korea?
Answer honestly.
If working in Korea is a goal, explain the relevant industry or research sector and how you plan to develop the language and professional skills needed.
Do not assume that graduating from a Korean university automatically guarantees employment or a work visa.
ㅤ
Language Questions
An English-taught program may still ask about your Korean ability, especially if research participants, laboratory communication, fieldwork, or employment in Korea could require Korean.
Likewise, a Korean-taught program may test whether your language level is sufficient for graduate seminars and research communication.
Describe your actual ability rather than overstating it.
ㅤ
English Interview Preparation
If English is not your first language, prepare for clarity rather than accent reduction.
Practice explaining:
Your research in 30 seconds / your research in two minutes / your methodology / your academic background / why this program
Record yourself and remove unnecessary sentences.
Short, structured answers are often easier to understand than memorized long speeches.
ㅤ
Technical Questions
STEM, economics, quantitative social science, and other technical programs may test subject knowledge.
The interviewer might ask you to explain a formula, algorithm, experimental design, theory, or problem related to your previous coursework or proposed research.
Review the fundamentals relevant to your application rather than trying to study your entire undergraduate degree again.
ㅤ
What If You Do Not Know the Answer?
Do not invent an answer.
You can say:
“I have not worked with that method directly, so I do not want to guess. My current understanding is X, and I would need to review Y before giving a more precise answer.”
This is usually better than confidently giving incorrect information.
Academic interviews also evaluate intellectual honesty.
ㅤ
The Interview May Test How You Think
Some interviewers deliberately challenge your proposal or disagree with your answer.
They may be evaluating how you respond to criticism rather than expecting one perfect position.
Listen carefully, clarify the question, and explain your reasoning.
Do not treat every challenge as a personal attack.
ㅤ
Prepare Questions for the Interviewers
If you are invited to ask questions, use the opportunity intelligently.
Good topics include:
Advisor assignment / research-group structure / expected first-year research activity / laboratory collaboration / funding confirmation / publication expectations / departmental seminars
Avoid asking basic information that is clearly available on the admissions website.
ㅤ
When to Ask About Funding
If funding has not already been confirmed, it is reasonable to clarify it before making a final enrollment decision.
However, do not make the entire interview about money.
For a research position, you can ask professionally about:
Tuition support / monthly stipend / RA or TA expectations / funding duration / scholarship renewal conditions
Exact financial terms should ideally be confirmed in writing later.
ㅤ
Online Interview Checklist
For an online interview, test:
Internet connection / microphone / camera / lighting / display name / meeting software / time zone / backup contact method
Keep your CV, proposal, and a few notes nearby, but do not read answers from a script.
Join early enough to solve technical problems before the scheduled time.
ㅤ
In-Person Interview Checklist
Confirm the building, room, arrival time, identification requirements, and any materials you need to bring.
Arrive early.
Dress professionally but appropriately for an academic setting.
Bring a copy of your application and research proposal if useful, even if the department already has them.
ㅤ
Do Not Memorize Full Scripts
Memorized answers can sound unnatural and become difficult to adapt when the interviewer changes the question.
Instead, prepare key points.
For each likely question, know the two or three ideas you want to communicate.
Then answer naturally.
ㅤ
Use a 30-Second, 2-Minute, and 5-Minute Research Explanation
Prepare three versions of your research explanation.
30 seconds — central problem and why it matters
2 minutes — problem, gap, question, and method
5 minutes — deeper background, method, expected contribution, and fit
This allows you to adapt to the interviewer’s available time.
ㅤ
Practice Follow-Up Questions
Do not practice only the first answer.
After answering “Why this topic?”, ask yourself:
Why this method? / Why this population? / Why Korea? / What if data access fails? / What is new? / Which paper supports this claim?
This is much closer to a real graduate interview.
ㅤ
After the Interview
You usually do not need to send a long thank-you letter unless there is a specific reason to follow up.
Write down any information you received about funding, advisor expectations, research direction, or additional documents.
If the department requests something after the interview, submit it by the stated deadline.
Then wait for the official admissions result rather than treating a positive interview as a final acceptance.
ㅤ
A Practical Interview Preparation Checklist
Before the interview, make sure you can explain:
Your academic background / why Korea / why this university / why this department / why this professor / research question / research gap / methodology / previous research / weaknesses in your application / career plan / funding expectations where relevant
Also review every claim in your CV and research proposal.
If you can discuss these areas clearly, you are prepared for most of the core questions that arise in a graduate-school interview.
ㅤ
FAQ
Do all Korean graduate schools interview international applicants?
No. Interview requirements differ by university, department, and admissions track.
Are Korean graduate-school interviews conducted in English?
Many international or English-taught programs can conduct interviews in English, but the language depends on the department and program. Confirm the current instructions.
How long is a graduate-school interview?
There is no standard duration. It can range from a short screening conversation to a longer research or technical interview.
What is the most common interview question?
Applicants should almost always be prepared to explain why they chose the program and what they want to study.
Will they ask technical questions?
They may, especially in research-intensive or quantitative fields. Review the academic foundations most relevant to your application.
Do I need to memorize my research proposal?
No. You should understand it deeply enough to explain and defend the logic without reading it.
What should I do if I do not know an answer?
Be honest, explain what you do know, and avoid inventing information.
Can I ask about funding during the interview?
Yes, when appropriate, especially if funding is important to the research offer. Keep the discussion professional and confirm final terms separately.
Does a good interview mean I am accepted?
Not necessarily. Wait for the university’s official admission decision.
What is the best way to prepare?
Review your entire application and practice explaining your research, academic background, program fit, and future plans in clear, concise answers.
