EY-Parthenon Behavioral Interview: Questions & Answers

Author: Taylor Warfield, Former Bain Manager and interviewer

Last Updated: May 2, 2026

 

EY-Parthenon behavioral interview questions test your motivation, leadership, teamwork, and cultural fit across every round of the interview process. Unlike many strategy consulting firms, EY-Parthenon places unusually heavy weight on the behavioral interview, especially in the final round with partners.

 

In this guide, you will learn exactly what EY-Parthenon looks for, the 15 most common behavioral questions, how to structure winning answers, and how to prepare a story bank that covers every scenario.

 

But first, a quick heads up:

 

McKinsey, BCG, Bain, and other top firms accept less than 1% of applicants every year. If you want to triple your chances of landing interviews and 8x your chances of passing them, watch my free 40-minute training.

 

What Is the EY-Parthenon Behavioral Interview?

 

The EY-Parthenon behavioral interview is a structured conversation where interviewers ask open-ended questions about your past experiences to predict how you will perform as a consultant. According to EY's official career page, the firm "leans heavily" on behavioral interviewing because past behavior is the best predictor of future behavior.

 

Behavioral questions appear in every single round of the EY-Parthenon interview process. That makes them different from firms like McKinsey, where the Personal Experience Interview is only one portion of one round. At EY-Parthenon, your behavioral performance is evaluated by recruiters, consultants, managers, and partners across multiple touchpoints.

 

Based on Glassdoor data from over 700 EY-Parthenon interview reviews, roughly 40% to 50% of the overall evaluation comes from behavioral and fit assessments. The final round partner interview is frequently described as "behavioral-heavy," with some candidates reporting that 20 out of 45 minutes were spent on behavioral questions and the remaining 25 minutes left for the candidate to ask questions.

 

For a complete overview of EY-Parthenon's interview process including case interviews and group case interviews, check out our EY-Parthenon case interview guide.

 

When Does the Behavioral Interview Happen at EY-Parthenon?

 

Behavioral questions show up in every round, but the format, depth, and interviewer seniority change as you advance. Here is what to expect at each stage.

 

Round 1: Recruiter Phone Screen

 

The first round is a 30-minute phone call with an HR recruiter. This call is almost entirely behavioral. The recruiter will ask about your resume, your motivation for consulting, and why you are interested in EY-Parthenon specifically.

 

The goal at this stage is to screen for basic fit. Recruiters are checking whether you can articulate your story clearly, whether you have genuine interest in the firm, and whether your background aligns with the role. According to candidate reports, about 90% of applicants are eliminated before reaching in-person interviews.

 

Round 2: Consultant or Manager Interviews

 

The second round typically consists of two back-to-back 30-minute interviews. One is a dedicated behavioral interview and the other is a case interview. Both are conducted by consultants or managers at the firm.

 

Even in the case interview, expect the first 5 to 10 minutes to include behavioral questions. Interviewers often open with "tell me about yourself" or "why EY-Parthenon" before transitioning to the case.

 

Round 3: Final Round with Partners

 

The final round is the most important for behavioral performance. You will typically have three interviews lasting 30 to 45 minutes each: one behavioral interview, one individual case interview, and one group case interview.

 

The dedicated behavioral interview in the final round is usually conducted by a partner or director. This is where EY-Parthenon tests whether you genuinely want to work at the firm and are not treating it as a backup. Partners dig deeper into your stories and look for authenticity, self-awareness, and cultural alignment.

 

EY Video Interview (Recorded Behavioral Questions)

 

Some offices and roles require a recorded video interview as part of the online assessment stage, before you reach live interviews. You will be given a question on screen and have a limited time to record your response.

 

Common video interview prompts include "Describe how you approach learning and applying a new skill" and "Tell us about a challenge you overcame." Treat these with the same preparation as live behavioral questions. Speak clearly, maintain eye contact with the camera, and use a structured answer format.

 

EY-Parthenon Behavioral Interview by Round

 

Round

Interviewer

Format

Key Focus

1

HR recruiter

30-min phone call, nearly all behavioral

Resume walkthrough, motivation, basic fit

2

Consultant / Manager

Two 30-min interviews (one behavioral, one case)

Leadership, teamwork, problem-solving stories

3 (Final)

Partner / Director

30-45 min dedicated behavioral plus case and group case

Cultural fit, authenticity, genuine interest in firm

Video

Recorded (no live interviewer)

Timed recorded responses to on-screen prompts

Communication skills, structure, poise

 

What Does EY-Parthenon Look For in Behavioral Interviews?

 

EY-Parthenon has historically described its ideal candidate as someone who is "smart, nice, and driven." While the firm no longer uses that exact tagline in official materials, the underlying philosophy still defines how interviewers evaluate candidates. Here is what each trait means in practice.

 

Smart

 

Interviewers want to see that you think clearly, structure your thoughts logically, and communicate complex ideas simply. In behavioral interviews, "smart" shows up in how you describe your approach to problems. Did you break the situation down? Did you identify what mattered most? Strong candidates describe their thinking process, not just the outcome.

 

Nice

 

This is where EY-Parthenon differentiates itself from many other strategy firms. The firm puts a premium on candidates who are genuinely collaborative, humble, and easy to work with. In your behavioral answers, "nice" shows up in how you talk about teammates, how you handled conflict, and whether you gave credit to others. If every story positions you as the lone hero, that is a red flag.

 

Driven

 

Partners want to see ambition and initiative. "Driven" candidates do not wait to be told what to do. In your stories, show moments where you proactively identified a problem, volunteered for a tough assignment, or went beyond what was expected. Back it up with results whenever possible.

 

In my experience coaching hundreds of candidates for consulting interviews, the ones who fail the EY-Parthenon behavioral round almost always fail on the "nice" dimension. They focus so much on sounding impressive that they forget to sound human. EY-Parthenon partners are looking for people they would enjoy staffing on a three-month engagement, not just someone who can solve a case.

 

What Are the Most Common EY-Parthenon Behavioral Interview Questions?

 

Based on candidate interview reports across Glassdoor, Wall Street Oasis, and direct coaching experience, here are the 15 most frequently asked EY-Parthenon behavioral interview questions organized by category.

 

Motivation Questions

 

  • Why are you interested in consulting?

 

  • Why EY-Parthenon specifically?

 

  • Walk me through your resume.

 

Leadership Questions

 

  • Tell me about a time when you had to lead a team.

 

  • Describe a situation where you had to influence someone without formal authority.

 

  • Tell me about your greatest accomplishment.

 

Teamwork and Collaboration Questions

 

  • Describe a time when you faced conflict or disagreement on a team.

 

  • Tell me about a time you had to work with a difficult teammate.

 

  • Give an example of a time you helped someone else succeed.

 

Problem-Solving Questions

 

  • Tell me about a time when you used data to solve a problem.

 

  • Describe a complex problem you had to simplify for others.

 

  • Give an example of a time when you successfully persuaded someone.

 

Self-Awareness Questions

 

  • Tell me about a time when you failed.

 

  • Tell me about something that is not on your resume.

 

  • What would your previous manager say is your biggest area for improvement?

 

EY-Parthenon Behavioral Questions by Category

 

Category

Example Question

What It Tests

Motivation

Why EY-Parthenon?

Genuine interest, research depth

Leadership

Tell me about a time you led a team

Initiative, influence, decisiveness

Teamwork

Describe a conflict on a team

Collaboration, humility, empathy

Problem-Solving

Time you used data to solve a problem

Analytical thinking, structured approach

Self-Awareness

Tell me about a time you failed

Growth mindset, honesty, resilience

 

How Should You Answer EY-Parthenon Behavioral Interview Questions?

 

The STAR method is the most effective framework for answering behavioral questions at EY-Parthenon. STAR stands for Situation, Task, Action, and Result. Here is how to use it.

 

Situation: Set the scene in 2 to 3 sentences. Give enough context for the interviewer to understand the stakes, but do not over-explain. Include when this happened, where you were working, and why it mattered.

 

Task: Clarify your specific responsibility. What were you personally asked to do or expected to deliver? This should be one sentence.

 

Action: This is the most important part and should take up about 60% of your answer. Describe the specific steps you took. Use "I" instead of "we" to make your individual contribution clear. Explain your reasoning for each key decision.

 

Result: Quantify the outcome whenever possible. Did revenue increase by a specific percentage? Did you save a certain number of hours? Even for softer outcomes, be specific. End with what you learned or what you would do differently.

 

For a deeper walkthrough of the STAR method with additional examples, see our STAR method guide.

 

Keep your answers between 90 seconds and 2 minutes. Anything shorter feels thin. Anything longer loses the interviewer's attention. Practice with a timer until you can hit this range naturally.

 

If you want to master behavioral interviews quickly, my fit interview course walks you through how to prepare for 98% of consulting fit interview questions in just a few hours.

 

How Do You Answer "Why EY-Parthenon?"

 

"Why EY-Parthenon?" is arguably the highest-stakes behavioral question in the entire process. The firm is known for screening out candidates who treat it as a backup to MBB. Your answer needs to be specific, personal, and impossible to recycle for another firm.

 

Every strong answer includes three elements.

 

1. A specific reason tied to EY-Parthenon's unique positioning. For example, EY-Parthenon offers both strategy consulting and access to EY's broader implementation capabilities. That means consultants can see the impact of their recommendations, not just deliver a deck and leave. This is a genuine differentiator that does not apply to McKinsey or BCG.

 

2. A personal connection to the people or culture. Reference specific conversations you have had with EY-Parthenon employees. Mention a coffee chat, an info session, or a networking event where someone's description of the culture resonated with you. Generic statements like "I love the collaborative culture" are not enough.

 

3. A link to your career goals. Explain how EY-Parthenon fits into what you want to do next. If you are interested in private equity strategy, mention that EY-Parthenon's transaction advisory work is one of the largest in the industry. If you want industry specialization, talk about their deep sector practices in education, healthcare, or financial services.

 

Where to research before your interview:

 

  • EY-Parthenon's official careers page and thought leadership publications on ey.com

 

  • Recent EY-Parthenon case studies and press releases

 

  • LinkedIn profiles of consultants in the office you are targeting

 

  • EY-Parthenon's CEO Outlook reports and annual publications

 

  • Glassdoor reviews for culture insights specific to your target office

 

How Do You Answer "Why Consulting?"

 

"Why consulting?" is a separate question from "Why EY-Parthenon?" and requires a different answer. This question tests whether you understand what consultants actually do and whether the career path genuinely fits your goals.

 

Structure your answer around three reasons. The strongest answers combine a personal experience with a forward-looking career rationale. Here are three angles that work well.

 

  • Impact at scale: You want to work on problems that affect thousands or millions of people. Consulting lets you advise CEOs and leadership teams on decisions that shape entire organizations.

 

  • Accelerated learning: You want exposure to multiple industries, functions, and business challenges in a short time. Consulting compresses 10 years of business experience into 2 to 3 years.

 

  • Skill development: You want to build both analytical and interpersonal skills. Consulting develops structured problem-solving, client communication, and team leadership simultaneously.

 

Avoid generic answers that sound like you copied them from a website. The best answers tie back to a specific experience. For example: "During my internship, I worked on a supply chain optimization project that saved $2M annually. That experience showed me that I love diagnosing business problems and building solutions, and consulting would let me do that across different industries."

 

For more detailed guidance on answering this question, see our why consulting guide.

 

Example Behavioral Interview Answers for EY-Parthenon

 

Below are two full STAR-format example answers tailored to common EY-Parthenon behavioral questions. Use these as models for how to structure your own stories.

 

Example: "Tell Me About a Time You Led a Team"

 

Situation: During my senior year, I led a five-person team for a semester-long consulting project with a local nonprofit that was struggling with donor retention. Their annual donor renewal rate had dropped from 65% to 48% over two years.

 

Task: I was responsible for managing the team, coordinating with the client, and delivering a final presentation with actionable recommendations.

 

Action: I started by creating a project plan with weekly milestones so everyone knew exactly what was due and when. When two teammates disagreed on whether to focus on donor communication or pricing tiers, I suggested we spend one week gathering data on both before deciding. I personally analyzed three years of donation records and found that 70% of lapsed donors had never received a follow-up email after their first gift. I then assigned each team member a specific workstream and scheduled 15-minute daily check-ins to keep momentum.

 

Result: We recommended a three-phase donor engagement program with automated follow-up emails, personalized thank-you calls for donations over $500, and quarterly impact reports. The client implemented our email recommendation within a month and saw a 12% improvement in donor retention within the first quarter. I learned that leading a team is less about having the best ideas and more about creating a structure that helps everyone contribute their best work.

 

Example: "Tell Me About a Time You Failed"

 

Situation: In my first job out of college, I was tasked with building a financial model to forecast quarterly revenue for a new product line. I had about three weeks to complete it.

 

Task: I needed to deliver a model that the VP of Finance would use in a board presentation.

 

Action: I dove straight into building the model without first aligning with stakeholders on their assumptions. I made my own assumptions about pricing, churn rates, and customer acquisition costs based on publicly available data. Two days before the deadline, I presented a draft to the VP, and she pointed out that my churn rate assumption was off by a factor of three because the product had an unusually long sales cycle that I had not accounted for. I had to rebuild large sections of the model over a weekend.

 

Result: I delivered the revised model on time, but it would have been stronger with an extra review cycle. The biggest lesson I took away was to always align on key assumptions before building anything. Now, whenever I start an analysis, I spend the first day talking to stakeholders to validate my assumptions before touching a spreadsheet. That habit has saved me significant rework on every project since.

 

What Are the Biggest Mistakes in EY-Parthenon Behavioral Interviews?

 

Having coached hundreds of consulting candidates, I see the same mistakes repeated in EY-Parthenon behavioral interviews. Avoid these six pitfalls.

 

1. Treating EY-Parthenon as a backup to MBB

 

This is the single fastest way to get rejected in the final round. Partners can tell when a candidate has not done their homework on the firm. If you cannot explain specific reasons why EY-Parthenon is your top choice, you will not get an offer.

 

2. Giving vague answers without specific details

 

Answers like "I am a strong leader" or "I work well in teams" mean nothing without a concrete example. Every behavioral answer needs a specific story with a specific outcome.

 

3. Talking too long

 

Rambling for 4 to 5 minutes on a single question is a common problem. Keep answers to 90 seconds to 2 minutes. If the interviewer wants more detail, they will ask a follow-up question.

 

4. Forgetting the "nice" dimension

 

Candidates who only tell stories about individual achievement miss what EY-Parthenon values most. Include at least one story where you helped a teammate, resolved a conflict with empathy, or gave credit to someone else. The firm's culture is people-first, and your stories should reflect that.

 

5. Not preparing enough stories

 

You will face behavioral questions in multiple rounds from different interviewers. If you only have two or three prepared stories, you will run out of material and start repeating yourself. Prepare five to six versatile stories that can be adapted to different question types.

 

6. Failing to show genuine self-awareness

 

When asked about a failure or weakness, some candidates give a disguised strength ("I work too hard"). EY-Parthenon interviewers see through this immediately. Share a real failure, explain what you learned, and describe how you changed your approach. Authenticity wins at this firm.

 

How Should Experienced Hires Approach the Behavioral Interview?

 

If you are an experienced hire, the behavioral interview at EY-Parthenon carries even more weight. Partners interviewing lateral candidates are specifically assessing whether you are ready to be placed in front of clients and deal teams from day one.

 

Here is how the experienced hire behavioral interview differs from campus recruiting.

 

Deeper probing on past work. Expect partners to ask detailed follow-up questions about your previous projects. They may ask about specific deliverables, client reactions, or how you handled ambiguity. Surface-level answers will not pass.

 

More emphasis on client management. At the experienced hire level, interviewers want to see evidence that you have managed client relationships, navigated organizational politics, and delivered bad news diplomatically.

 

Higher bar for "Why EY-Parthenon?" Lateral candidates need a compelling reason for switching firms or entering consulting. Simply wanting "a new challenge" is not enough. Explain what EY-Parthenon offers that your current firm does not, and be specific about service lines, industry practices, or deal types that interest you.

 

According to Glassdoor reviews, the experienced hire process at EY-Parthenon can take anywhere from 2 to 12 weeks, with some candidates reporting timelines as long as 9 months for senior roles. Be patient and use the extra time to prepare thoroughly.

 

How Do You Prepare for the EY-Parthenon Behavioral Interview?

 

Follow this step-by-step preparation plan to be fully ready for behavioral questions across all rounds.

 

Step 1: Build your story bank

 

Identify five to six stories from your professional and personal experience that demonstrate leadership, teamwork, problem-solving, resilience, and initiative. Each story should be versatile enough to answer multiple question types. For example, a story about leading a team through a tight deadline can answer questions about leadership, time management, and handling pressure.

 

You should also prepare a concise resume walkthrough that hits your key highlights in under 2 minutes. For tips on structuring your resume to set up strong stories, see our consulting resume guide.

 

Step 2: Structure each story using STAR

 

Write out each story in STAR format. Keep the Situation and Task sections short (2 to 3 sentences combined). Spend the most time on the Action section. End every story with a quantified Result and a learning takeaway.

 

Step 3: Map stories to question categories

 

Create a simple grid with question categories (motivation, leadership, teamwork, problem-solving, self-awareness) across the top and your stories down the side. Make sure every category has at least two stories that fit. This ensures you will never be caught without an answer.

 

Step 4: Research EY-Parthenon deeply

 

Go beyond the firm's website. Read recent EY-Parthenon thought leadership, review the CEO Outlook report published in January 2026, and look up consultants at your target office on LinkedIn. If possible, schedule coffee chats with current employees to get firsthand perspectives on the culture. This research will fuel your "Why EY-Parthenon?" answer and help you ask informed questions at the end of each interview.

 

Step 5: Practice out loud

 

Rehearse each story out loud at least three times. Record yourself and check for filler words, rambling, and whether you hit the 90-second to 2-minute target. Practice with a friend or coach who can give honest feedback. The difference between a good answer and a great answer is almost always delivery, not content.

 

For a complete library of behavioral interview questions with answer frameworks, check out our dedicated guide.

 

Frequently Asked Questions

 

How Many Behavioral Questions Are Asked per Round?

 

In the recruiter phone screen, expect 4 to 6 behavioral questions across 30 minutes. In the second round behavioral interview, expect 3 to 5 questions. In the final round partner interview, expect 3 to 4 deeper questions with extensive follow-ups. The partner round often feels more conversational, but the evaluation is just as rigorous.

 

How Heavily Is the Behavioral Interview Weighted vs. the Case Interview?

 

At EY-Parthenon, the behavioral interview carries roughly 40% to 50% of the overall evaluation, which is higher than at most strategy consulting firms. A strong case performance will not save you if you fail the behavioral round, especially in the final round where cultural fit is the primary focus.

 

Should You Use STAR or CAR to Structure Answers?

 

Both STAR (Situation, Task, Action, Result) and CAR (Context, Action, Result) work well. STAR is more common and gives you a natural structure with four distinct sections. CAR is slightly more concise because it combines Situation and Task into a single Context section. Either format is acceptable at EY-Parthenon. Choose whichever helps you stay within the 2-minute target.

 

What If You Have No Consulting or Business Experience?

 

That is completely fine. EY-Parthenon hires candidates from diverse backgrounds including engineering, government, nonprofits, and academia. Your stories do not need to be about consulting. They need to demonstrate the traits EY-Parthenon values: analytical thinking, collaboration, initiative, and the ability to learn quickly. A story about leading a volunteer project or solving a technical problem in a research lab can be just as effective as a business example.

 

How Long Should Behavioral Interview Answers Be?

 

Aim for 90 seconds to 2 minutes per answer. Shorter answers can feel incomplete, while answers over 3 minutes risk losing the interviewer's attention. If the interviewer wants more detail on a particular point, they will ask a follow-up question. Let them guide the depth.

 

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