Assessment centre exercise

The Group Exercise, Explained

Four to eight candidates, one shared brief, silent assessors scribbling behind you. The group exercise is the part of the assessment centre candidates fear most, and the one where a small amount of technique moves your score furthest. Here is the format, the marking criteria, and a worked walkthrough of a typical 40-minute task.

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In short

A group exercise puts four to eight candidates around a table or in a video breakout room with a shared brief, commonly a prioritisation problem, a business decision or a resource allocation task, and 30 to 45 minutes to reach a recommendation together. Silent assessors score each candidate individually against a competency matrix, marking contribution balance, building on others, structure and outcome focus. You are marked against the criteria, not against the other candidates, so making the group succeed is the winning strategy.

The logistics

When it happens and how it runs

Timing. The group exercise typically takes place in the middle of the assessment centre or superday schedule, often wedged between individual interviews and analytical written tasks to test how your energy and collaboration hold up under pressure.

Window. Candidates are usually given a 10-to-15-minute silent preparation window immediately before the clock starts to read the brief, digest the data, and make personal notes. It runs as one continuous sitting once the group discussion begins.

Retakes. This exercise is strictly a one-shot evaluation. There are no retakes or second chances within the current recruitment cycle; your performance during this specific window is what goes onto your permanent scorecard.

Volume. Groups typically consist of 4 to 8 candidates, observed by 2 to 4 assessors. This ratio ensures that each assessor is assigned to track exactly 2 or 3 specific candidates, taking verbatim notes of their contributions against the matrix.

Recent changes. The shift to virtual assessment centres and digital superdays has made video breakout rooms standard. This format has introduced mixed-brief variants where candidates receive different pieces of information via PDF, making explicit information-sharing a requirement for success.

The basics

What it is

The group exercise is an observed team discussion. The recruiting team hands every candidate the same brief, sets a time limit of 30 to 45 minutes, and asks the group to produce something concrete: a ranked list, a recommendation, an allocation of a fixed budget, or a plan. Assessors, usually one per two or three candidates, sit outside the circle, say nothing, and record evidence on each individual. At UK assessment centres it is close to universal; at US superdays a group case or team discussion increasingly plays the same role.

The tasks themselves are deliberately accessible. Classic briefs include ranking ten items by importance after a desert island or survival scenario, choosing which three of six projects a charity should fund, deciding which product a company should launch, or dividing a budget across competing departments. Some versions assign each candidate a different one-page brief so that everyone holds different information or represents a different stakeholder, which quietly tests sharing and negotiation. No brief requires specialist knowledge: the content is a vehicle, the behaviour is the test.

That is the single most important thing to understand: the conclusion your group reaches barely matters. There is no secretly correct ranking of survival items. What is being measured is how you behave on the way to the conclusion: whether you bring structure to an unstructured conversation, whether you listen and build rather than broadcast, whether you keep the group honest about time and the brief, and whether you help land an actual outcome rather than an elegant unfinished debate.

Group exercises run both in person and virtually. In a breakout room the dynamics shift: interruptions feel ruder, silence is easier to hide in and easier to be forgotten in, and the candidate who summarises and manages turn-taking becomes disproportionately valuable. The marking criteria do not change; the premium on deliberate, signposted contribution goes up.

The format

What you will actually face

The shape of the exercise on the day: how it is run, how long you get, and what you have to produce.

Delivery

Delivered either in person around a conference table or digitally within a structured video breakout room (such as Zoom, Microsoft Teams, or specialized assessment platforms).

Group size

Typically 4 to 8 candidates per group, scaled based on the complexity of the prompt.

Preparation

A short 10-to-15-minute reading brief provided digitally or as a physical packet. In assigned-role variants, this includes a unique one-page brief detailing your specific stakeholder priorities.

Total time

Typically 30 to 45 minutes of active discussion time, excluding the initial reading window.

Deliverable

A finalized group recommendation, a ranked list of priorities, a specific budget allocation, or a strategic implementation plan. Some variants require a 3-minute verbal summary to the assessors at the end.

The marking

What assessors mark

Every exercise maps back to a fixed competency matrix. These are the behaviours this one is built to surface.

Airtime balance

Assessors track how much you speak relative to the size of the group. The goal is to hit an optimal zone of roughly 15% to 25% of total airtime, demonstrating that you can voice your opinions without dominating the room or retreating into silence.

Building on others

This behavior is marked when you actively listen, reference a peer by name, and synthesize their point to move the discussion forward. It shows you treat the exercise as a collaborative workshop rather than an individual presentation.

Structure and process

This involves proposing a clear agenda, establishing explicit decision-making criteria early on, and acting as a custodian of time. Assessors look for candidates who prevent the group from diving into unstructured arguments before setting the framework.

Outcome focus

This metric evaluates your ability to manage momentum and drive the group toward a consensus. It rewards candidates who recognize when the discussion is looping, gently refocus the team on the final deliverable, and help negotiate compromises before the time runs out.

Bringing others in

This behavior measures your inclusive leadership skills. Assessors look for candidates who notice when quieter team members are struggling to get a word in, and politely open the floor to them without putting them on the spot.

Composure and tone

This assesses your emotional intelligence and professional conduct under stress. It evaluates how you handle disagreements, whether you maintain a constructive tone when challenged, and your ability to remain calm when the group faces tight time constraints.

The scoring

How the exercise becomes a decision

Every exercise maps back to a competency matrix. Here is how the marks are made and what happens to them.

Method. Each assessor is assigned specific candidates to shadow and records chronological, objective evidence of what those candidates say and do. They do not rate you based on a general feeling. Instead, they map your specific actions to a standardized competency matrix. After the assessment centre concludes, the assessors gather for a wash-up session where they compare notes, pool their evidence, and agree on a final score for each competency. Because you are scored individually against an absolute benchmark, there is no fixed curve within the room; every single candidate in a high-performing group can pass, or the entire group can fail if they default to toxic competition.

  • Teamwork: Champions collaboration, supports peers, and resolves internal group friction constructively.
  • Communication: Expresses complex ideas clearly, listens actively, and adapts language to persuade others.
  • Influence: Secures buy-in for ideas through logical reasoning rather than loud assertion or stubbornness.
  • Structured thinking: Organizes ambiguous information logically and keeps the group aligned to a clear methodology.
  • Drive for results: Maintains momentum, monitors the clock, and ensures all deliverables are met on time.

Pass rates. Employers rarely publish fixed group-exercise quotas or pass rates because performance is evaluated against an absolute competency standard rather than a competitive curve. However, historical graduate recruitment data suggests that approximately 40% to 50% of candidates who reach the assessment centre stage meet the baseline threshold across all exercises, with the group task frequently acting as a major filter for interpersonal skills.

Feedback. Candidates may request a formalized feedback report or a brief summary of their competency scores. This depends heavily on the employer; larger accounting and consulting firms frequently provide automated matrix feedback, while investment banks rarely provide detailed commentary due to the sheer volume of applicants.

Worked example

A worked walkthrough

How a strong candidate spends the clock, minute by minute, on a typical version of this exercise.

  1. 01

    Minute 0 to 2: read the brief twice and extract the deliverable

    The brief lands: your group advises a charity that can fund three of six proposed projects, and must present a recommendation with reasons in 40 minutes. Read it twice before speaking. Underline the deliverable (three projects, with reasons), the constraints (budget, timing) and anything the brief says about how the decision should be judged. A misread brief is the most common cause of a failed exercise, and the candidate who quotes the brief accurately at minute 25 often quietly becomes its leader.

  2. 02

    Minute 2 to 5: propose a structure and a timekeeper

    Someone needs to open with process, and it might as well be you: suggest the group spends five minutes agreeing criteria, twenty minutes evaluating the six projects, and the final ten deciding and preparing the recommendation, with one person watching the clock. Volunteering to timekeep is a low-risk, high-visibility structural contribution. If someone else proposes a plan first, improve it and agree quickly; fighting over whose agenda wins is wasted airtime.

  3. 03

    Minute 5 to 10: agree the decision criteria before debating options

    Steer the group to agree what a good answer looks like before arguing cases: perhaps impact per pound or dollar spent, urgency, and fit with the charity's mission. Criteria turn six emotional arguments into one comparison, and the candidate who proposes them has visibly structured the whole discussion. This is also the natural moment to bring everyone in: a quick once-around the table for views generates evidence for the whole group and marks you as the person who organised it.

  4. 04

    Minute 10 to 30: evaluate the options, build and test

    Work through the projects against the criteria. Contribute substance, but spend deliberate effort on connective moves: build on points by name, test weak assumptions politely with questions rather than verdicts, and offer a quick summary whenever the discussion completes a chunk. If two candidates lock horns, reframing their disagreement against the agreed criteria is a high-scoring intervention. If someone has barely spoken, invite them in. Keep half an eye on the clock even if you are not the timekeeper.

  5. 05

    Minute 30 to 36: force convergence

    With ten minutes left, someone must move the group from discussing to deciding. Summarise where the group agrees, name the one genuine open question, and propose a mechanism: score each project against the criteria, or a straight show of hands on the contested slot. Expect the group to be behind schedule, because almost every group is, and treat rescuing the timeline as your opportunity rather than a crisis. The candidate who lands the decision is remembered by every assessor in the room.

  6. 06

    Minute 36 to 40: lock the recommendation and close cleanly

    Confirm the final answer in one tight statement: which three projects, and the one-line reason for each, anchored to the criteria the group agreed at the start. If the brief requires a spokesperson, support whoever presents rather than competing for the microphone; assessors mark the closing summary as group output, and the person who drafted its logic has already banked the credit. Finishing on time with a clear, reasoned recommendation is precisely the outcome focus the matrix rewards.

Rehearse the format

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How not to fail

Mistakes that sink candidates

Specific failure modes assessors screen out. None of them need talent to avoid, only awareness.

  • Dominating the discussion

    Talking the most feels like winning and scores like losing. Assessors mark interrupting, steamrolling and re-explaining other people's points as evidence against teamwork, and one domineering performance can fail an otherwise strong day. If you are naturally talkative, give yourself a rule: after each contribution, the next voice must be someone else's, and at least two of your contributions should exist purely to bring someone else in.

  • Saying too little

    Assessors can only score observable behaviour, so silence reads as absence regardless of what you were thinking. If speaking up is hard, take a structural role early: propose the agenda, keep time, or summarise at the midpoint. These roles create scheduled, legitimate speaking moments and generate strong evidence without requiring you to outtalk anyone. Three or four signposted, high-quality contributions are enough to score well.

  • Ignoring the brief

    Groups regularly produce confident answers to questions that were never asked: ranking items when the brief asked for a funding decision, or ignoring a stated constraint entirely. Read the brief twice at the start, restate the deliverable to the group, and check against it before the final summary. Being the person who catches a drift from the brief at minute 25 is one of the highest-value interventions available in the entire exercise.

  • No timekeeping

    The classic failure: thirty-five minutes of excellent discussion, no decision, and a panicked non-answer in the final ninety seconds. An unfinished exercise caps everyone's outcome-focus score. Agree a time plan in the opening minutes, appoint a timekeeper, and treat the milestones as real. If the group is behind, say so out loud and propose what to cut; rescuing the timeline is a leadership behaviour assessors reward every time.

  • Competing instead of collaborating

    Treating the other candidates as rivals, scoring points off their ideas, or visibly manoeuvring to look cleverest reliably backfires, because you are marked against a competency matrix and collaboration is on it. The winning frame is to act like the best colleague in the room. Most firms can and do pass several candidates from one group, and helping the group succeed is the most reliable way to be among them.

  • Checking out after a bad moment

    A point that falls flat, an interruption, a wrong number: weak candidates visibly deflate and contribute nothing further, and the assessors' last twenty minutes of notes record the sulk rather than the recovery. Resilience is usually on the matrix precisely for this moment. Concede gracefully, move on immediately, and make your next contribution a constructive one; recovering well can score higher than never stumbling at all.

From past candidates

How recent candidates approached it

Anonymised accounts of how real candidates handled this exercise: the prep, the experience, and the outcome.

Management Consulting Graduate Scheme (UK)

Prep. Participated in three live mock group case studies with university peers and rehearsed a template for setting up an agenda within the first 60 seconds.

Experience. The exercise was a virtual breakout room with six candidates. The prompt was a charity-funding scenario where we had to select three out of six urban regeneration projects within a 40-minute window. Two candidates immediately tried to dominate the airtime and argue for their specific projects. I stepped in during the third minute to suggest we pause and establish three core evaluation criteria based on the charity's mission statement before looking at individual projects. I kept track of time, explicitly calling out when we had 10 minutes left to finalize our recommendations. I also invited a quieter candidate into the conversation by saying, "We haven't heard from Sarah yet on the sustainability metric, I'd love to get her perspective."

Outcome. Pass. The written feedback specifically highlighted my use of structure, timekeeping, and active inclusion of peers.

Investment Banking Division (IBD) Superday (US)

Prep. Focused heavily on individual technical finance prep, modeling, and market walk-throughs; spent minimal time practicing group dynamics.

Experience. This was an in-person team discussion during a Superday with five other candidates. The task was a commercial case study where we had to allocate a fixed capital budget of 5,000,000 GBP / 6,200,000 USD across four competing business units. I wanted to show my technical knowledge, so I spoke first and laid out a comprehensive financial justification for my assigned department. When another candidate challenged my assumptions, I grew defensive and spent several minutes debating data points directly with them, which derailed the group's timeline. We ended up rushing our final allocation in the last two minutes without a clear consensus.

Outcome. Fail. Although my individual interviews went exceptionally well, the feedback from the superday coordinator indicated that I scored below the threshold for collaborative teamwork and flexibility in the group setting.

Practice plan

A week-by-week run-up

How to rehearse the format ahead of time so nothing on the day is happening for the first time.

  1. Week 1: Foundation and Frameworks

    Master the mechanics of structured group discussions and understand the competency matrix.

    • Deconstruct sample group briefs to identify hidden constraints, budgets, and conflicting goals.
    • Rehearse a 30-second opening script to confidently propose an agenda and decision-making criteria.
    • Practice reading messy, data-heavy case packets within a strict 10-minute limit and extract key priorities.
  2. Week 2: Role Rotation and Peer Mocks

    Develop flexibility by practicing different structural roles within a group setup.

    • Organize mock group discussions with peers or university careers services using video platforms.
    • Rotate through specific roles across different sessions: serve as the explicit timekeeper in one, the scribe in the next, and the consensus driver in the third.
    • Drill one-minute summaries of complex, unorganized arguments to sharpen your synthesis skills.
  3. Week 3: Advanced Scenario and Virtual Mastery

    Polish your virtual communication mechanics and practice handling difficult team dynamics.

    • Rehearse assigned-role variants where you must balance defending a specific stakeholder brief with achieving a group goal.
    • Practice intentional turn-taking on camera: use physical cues, visual tracking, and brief pauses to avoid speaking over others in virtual breakout rooms.
    • Simulate challenging group dynamics, such as managing a dominant candidate or re-engaging a silent peer.
    • Use Intervyo once or twice to test your baseline behavioral delivery in a structured, simulated environment.

Practice prompts

A bank of sample briefs

Rehearse against prompts in the shape of the real thing before the day.

  • Charity Project Allocation (The Live Scenario Baseline)

    A philanthropic foundation has a fixed budget of 3,000,000 GBP / 3,700,000 USD and must select exactly three out of six proposed community projects. Each project has unique social impact metrics and financial risks. The group must deliver a unified funding recommendation.

  • Desert Island / Arctic Survival

    A classic prioritization exercise where a team is stranded following an accident and must rank 15 salvaged items in order of utility. Tests pure logic, negotiation, and how candidates handle subjective differences under pressure.

  • Corporate Crisis Response

    A manufacturing company faces a major product recall and supply chain failure simultaneously. The group receives a series of live data updates during the 40-minute window and must allocate immediate resources to manage public relations, legal liabilities, and operations.

  • Technology Infrastructure Upgrade

    An international law firm must select one of three competing cloud computing vendors. Each option presents distinct trade-offs between cybersecurity protections, implementation costs, and staff training times.

  • Retail Market Entry

    A major US consumer goods firm wants to expand into the UK market. The group is presented with market research data for three distinct entry strategies: joint venture, organic growth, or acquisition. The team must present a single unified recommendation.

  • Departmental Budget Negotiation (Assigned-Role Variant)

    Each candidate represents a different department head (Marketing, R&D, Operations, HR) within an automotive company. The firm must cut its overall budget by 15%. Candidates must defend their own department's critical needs while successfully hitting the total savings target together.

  • Municipal Development Planning

    A city council has been allocated a plot of land and must choose between building affordable housing, a commercial technology park, or a green community space. Tests your ability to balance commercial returns with broader stakeholder interests.

  • Energy Transition Strategy

    An oil and gas conglomerate needs to allocate capital across three renewable energy pilots: offshore wind, green hydrogen, or carbon capture. The brief requires balancing immediate public relations benefits with long-term financial viability.

  • Venture Capital Investment Committee

    A investment team must review three early-stage startup pitches and select one to receive a Series A funding round of 4,000,000 GBP / 5,000,000 USD based on market size, founder track records, and financial projections.

  • Real Estate Portfolio Rebalancing

    A property fund must decide whether to sell commercial office spaces at a loss to invest in high-yield logistics warehouses. This tests analytical synthesis and collective risk tolerance.

Where you will meet it

Firms that run a group exercise

Banking, consulting, law and the Big 4 nearly all fold a group exercise into the assessment centre or superday. Each links to a full firm guide: the process, the questions they ask, and how to prepare.

Goldman SachsPack readyJ.P. MorganPack readyMorgan StanleyPack readyBank of AmericaPack readyCitiPack readyEvercorePack readyLazardPack readyCenterview PartnersPack readyBlackstonePack readyKKRPack readyMcKinsey & CompanyPack readyBCGPack ready

Firms marked Pack ready have a full Intervyo prep Pack: firm-specific HireVue practice, psychometric tests, live AI mock interviews, CV review and process intelligence.

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Frequently asked questions

Assessors look for evidence of your interpersonal competence, collaborative leadership, and structured thinking mapped against a predetermined matrix. They do not grade you on whether your specific idea wins. Instead, they track how you help the group reach a logical conclusion. They want to see that you can balance your own airtime, listen actively to others, and introduce a clear framework to organize the discussion.

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