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How consulting behavioral interviews work
A behavioral interview is a conversation in which each question asks for a real past situation, and your answer is judged on what you did and why. The U.S. Office of Personnel Management (OPM) describes structured interviews as a way to evaluate competencies that are hard to measure otherwise, by asking every candidate the same questions.
Consulting is not only cases. McKinsey & Company says that for most client-facing roles you take part in personal experience interviews and problem-solving interviews, and some roles add expertise interviews. A Personal Experience Interview is McKinsey's behavioral interview, which asks about accomplishments and challenges. McKinsey also asks for a conversation, not a rehearsed story, and tells candidates to focus on their own role and lead with reasoning, not actions (read October 2026).
That gives you the grammar of a good answer, offered here as advice and not as any firm's scoring rule: set the scene briefly, say what you were responsible for, explain why you chose your approach, describe what you did, and state the result and what you would change.
The full method for this family of questions is in the behavioral interview guide, and the general approach to any question is in how to answer interview questions. The grammar above is the situation, task, action, result (STAR) structure plus a closing reflection; the STAR method for teamwork questions shows it in use. Many firms call this part of the process the "fit" interview, and the questions below are the kind used in it.
Build a story bank first
A story bank is a short list of real experiences, each noted in a few lines, that you can adapt to many different questions. McKinsey suggests coming with two personal examples for each of four areas (personal impact, entrepreneurial drive, inclusive leadership and courageous change), which is eight in total, and choosing experiences that mattered to you (McKinsey, October 2026).
The five groups of questions below are our own grouping, not McKinsey's areas, but they map onto them roughly: leadership and influence fits inclusive leadership, achievement and impact fits personal impact, initiative and changing your mind fit entrepreneurial drive and courageous change, and disagreeing with a senior person fits courageous change. Use the groups to test coverage: if each story can answer questions in several groups, your eight stories will cover the interview.
For each story, write down: your specific role, the decision you made and the reasoning behind it, the result, and one thing that went wrong or that you would do differently. Include at least a couple of challenges, not only wins, because McKinsey says it wants to hear about both. Then test each story against the questions below. One strong story can often answer a leadership, a conflict and a failure question by emphasizing a different part.
Knowing it is half the job. Saying it is the other half.
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Start Free Trial →Leadership and influence questions
Tell me about a time you led a team through a difficult situation.
Pick a moment when you had no formal authority or the plan was unclear. Say what the goal was, why you chose your approach over the alternatives, and how you kept people moving. Name one thing a teammate disagreed with and how you handled it. Close with the result and what you learned. Keep the focus on your own decisions, not the team's overall achievement.
Why it is asked: it shows how you reason about people and priorities. Read the full explanation: how to answer interview questions.
Tell me about a time you influenced someone who did not report to you.
Choose a case where you needed agreement without being able to order it. Explain what the other person cared about, how you learned that, and how you framed your request around it. Describe the outcome honestly, including any compromise. A strong answer shows listening first and evidence second, rather than persistence alone.
Why it is asked: consulting teams and clients rarely follow instructions from a junior person. Read the full explanation: influencing without authority.
Describe a time you took initiative without being asked.
Describe a gap you noticed, why it mattered, and what you did about it before anyone assigned it. Be specific about the effort you personally put in and how you checked that the work was wanted. A good answer includes how you avoided stepping on a colleague's work and what changed afterward.
Why it is asked: it separates people who wait for a task from people who find the next one. Read the full explanation: common interview questions and how to answer them.
Tell me about a time you changed your mind after new information.
Name the original view, the new fact that challenged it and how you checked that fact. Then explain what you did differently. This shows you lead with reasoning, which McKinsey's guidance asks for (McKinsey, October 2026). Avoid a story where you were simply wrong about something trivial.
Why it is asked: it tests intellectual honesty and how you handle evidence. Read the full explanation: how to answer interview questions.
Teamwork and conflict questions
Tell me about a conflict with a teammate and how you resolved it.
Describe the disagreement in neutral words, without blaming the other person. Explain what each side wanted, what you did to understand their view, and the step that moved things forward. State the result and what the working relationship was like afterward. If it was not fully resolved, say so and describe what you accepted.
Why it is asked: project teams are small and close, so how you handle friction matters. Read the full explanation: answering a teamwork question with the STAR method.
Describe a time you worked with someone very different from you.
Choose a real difference, such as working style, seniority or background, and say what it made hard. Then give the specific adjustment you made, such as changing how you shared updates, and what the other person did. A strong answer shows you adapted without giving up your own standards.
Why it is asked: consulting teams change every project, so you must work with unfamiliar people quickly. Read the full explanation: interpersonal communication in an interview.
Tell me about a time you disagreed with a manager or a senior person.
Say what the disagreement was about, how you prepared your view and how you raised it, privately or in the open. Explain how you responded when the decision went the other way, since that is the revealing part. A good answer shows you can push back with reasons and still commit.
Why it is asked: advisers must challenge a client or partner respectfully. Read the full explanation: influencing without authority.
Challenge and failure questions
Tell me about a time you failed.
Pick a real failure with real cost, not a disguised success. Say what you were responsible for, what you decided and the reasoning that turned out to be flawed. Then state the concrete change in how you work now. McKinsey says it wants to hear about challenges as well as accomplishments (McKinsey, October 2026), so own the miss plainly.
Why it is asked: it shows self-awareness and whether you learn from outcomes. Read the full explanation: what is your greatest weakness.
Tell me about the hardest problem you have solved.
Choose a problem where the route was unclear. Describe how you broke it into parts, what you tried first and why, what did not work and how you changed course. Give the result in plain terms. Because this is a conversation, expect the interviewer to ask why you chose one path over another, and keep the reasoning ready.
Why it is asked: it previews how you structure a messy problem, the skill a case also tests. Read the full explanation: common interview questions and how to answer them.
Describe a time you had too much to do and had to prioritize.
Say what was competing for your time, how you decided what mattered most and what criteria you used. Name what you dropped or delayed and whom you told. A strong answer shows an explicit rule and communication, not just working longer hours.
Why it is asked: consulting workloads are uneven and deadlines are fixed. Read the full explanation: how to answer interview questions.
Achievement and impact questions
Tell me about your greatest accomplishment.
Choose something that genuinely mattered to you, as McKinsey advises (McKinsey, October 2026), and be exact about your own part. Describe what was at stake, the key decision you made and why, and the measurable or observable result. If you can cite a figure, make sure it is true and that you can explain how it was measured.
Why it is asked: it shows what you value and how you describe your own contribution. Read the full explanation: why should we hire you.
Tell me about a time you made an impact on a group or organization.
Name the group, the problem it had and what you did that others had not. Explain the reasoning behind your choice, who you needed to bring along and what changed afterward. Keep the answer about your decisions, not a summary of the whole project.
Why it is asked: it tests whether you can create change beyond your own tasks. Read the full explanation: why should we hire you.
Tell me about a time you used data or analysis to persuade someone.
Describe the question, the data you chose and why, what the analysis showed and how you presented it to a skeptical listener. Mention one limitation you were open about. The strong version shows you adapted the message to the person, not just that the numbers were right.
Why it is asked: much of consulting is turning analysis into a decision someone will act on. Read the full explanation: influencing without authority.
Motivation and fit questions
Walk me through your background.
Give a short chain that connects past choices to this role, with two or three moments that explain why you are here. End with why consulting fits what you want to do next. Keep it to a minute or so and leave the detail for follow-up questions.
Why it is asked: it opens the conversation and shows how you frame your own story. Read the full explanation: tell me about yourself.
Why consulting, and why this firm?
Give two or three reasons that are true for you, each tied to something you have done or learned, such as the variety of problems or working in small teams. Then name something specific about the firm that you verified from its own materials. Avoid reasons that would fit any firm or any industry.
Why it is asked: interviewers want to hear that you understand the job and chose it deliberately. Read the full explanation: why should we hire you.
What is your biggest weakness?
Name a real, bounded weakness that would not disqualify you, and describe the system you built around it, with one example of it working. A strong answer ends with what you changed in how you work, rather than a trait presented as a strength.
Why it is asked: it tests honesty and whether you act on feedback. Read the full explanation: what is your greatest weakness.
Do you have any questions for us?
Prepare questions whose answers you cannot find online, such as what a typical week looks like or how teams give feedback. McKinsey itself says interviewing is a two-way process and invites questions (McKinsey, October 2026). Avoid questions about pay or benefits in a first conversation.
Why it is asked: it shows curiosity and judgment. Read the full explanation: questions to ask in an interview.
Follow-up questions
What is a fit interview in consulting?
A fit interview is the part of a consulting interview that tests how you work with people rather than how you solve a case. It is built mostly from the behavioral and motivation questions above. Formats differ by firm, so check each firm's own page; at McKinsey the equivalent is the Personal Experience Interview.
Do consulting interviews include behavioral questions or only cases?
They include both for most client-facing roles at McKinsey, according to its own careers page (McKinsey, October 2026). Check each firm's own page for its format.
How many stories should I prepare for a consulting behavioral interview?
McKinsey suggests two examples in each of four areas, which is eight (McKinsey, October 2026). A smaller, well-rehearsed set can cover many questions if each story has several angles.
Should I memorize my answers?
No. McKinsey says it wants a conversation, not a rehearsed story. Know the facts, the decisions and the result of each story, then say it naturally. Practice out loud, and see the questions to ask page for the end of the conversation, or Google behavioral interview questions for how another large employer's behavioral round is described.
- Consulting behavioral questions sit beside problem-solving questions, not in place of them.
- Build a story bank of real experiences, including challenges, not only wins.
- Lead with your reasoning and your own role, not a list of actions.
- Aim for a conversation, not a rehearsed script.
- One strong story can answer leadership, conflict and failure questions from different angles.
Sources
- Interviewing at McKinsey: getting ready for your interviews — McKinsey & Company, 25 Oct 2026
- Structured Interviews — U.S. Office of Personnel Management, 26 Oct 2026
- Assessment and Selection — U.S. Office of Personnel Management, 26 Oct 2026
