What happens at an assessment centre? How to prepare for the day

How the day is usually laid out

Employers, especially in the UK for graduate schemes, use assessment centres as the final stage of selection. Several candidates attend together, in person or online. Different assessors watch different exercises and score against a competency framework, such as communication, teamwork, problem solving, commercial awareness and resilience.

A typical full-day schedule looks something like this, though every employer's differs:

Your invitation email usually lists the exercises. If it doesn't, ask the recruitment team. Knowing what's coming lets you prepare the right way for each.

The group exercise

Five to eight candidates get a brief, such as choosing where to open a new office from four options, and 30–45 minutes to agree. Assessors watch each person.

• Contribute early, even with a process suggestion: "Shall we spend five minutes reading, then share first views?"
• Use the brief's data. Points backed by a number from the pack carry more weight.
• Build on others by name and bring in quieter candidates.
• Watch the clock and push the group toward a decision.

The group interview guide has lines for agreeing, disagreeing and including others.

The presentation

You might prepare it in advance or get 20–30 minutes on the day to analyse a pack and present a recommendation, often in 5–10 minutes. For timing and Q&A, see how to give a presentation in a job interview. On the day itself:

1. Decide your recommendation first, before preparing slides or notes.
2. Use a simple structure: recommendation, three reasons, risks, next steps.
3. Keep notes to keywords on cards.
4. Finish a minute early and leave time for questions.

The role-play

An actor or assessor plays a character: an unhappy customer, an underperforming team member, a colleague who disagrees. You get a short brief, then 10–20 minutes in the conversation. The scenario often has hidden information the character only shares if you ask good questions.

A shape that works for most role-plays:

Stay in role even if it feels artificial. Don't promise things the brief says you can't. If the character gets angry, slow down and lower your voice slightly; matching their volume escalates it. The guide to handling an angry customer has more example lines.

The interview

Usually a competency-based interview: "Tell me about a time when…" questions mapped to the framework. Some employers use strengths-based questions instead: "What do you enjoy doing?" "When do you feel most energised?" Prepare 8–10 stories from university, jobs and activities, each tellable in about 90 seconds, and expect follow-up questions on each.

Pacing yourself across the day

An assessment centre is long, and the last exercise counts as much as the first. People often do well in the morning and fade after lunch.

• Sleep and eat properly the night before and at lunch. Bring water and a snack.
• Treat each exercise as a fresh start. Different assessors often score each one, so a weak group exercise doesn't have to colour your interview.
• Do a two-minute reset between exercises: water, a slow breath, reread the next brief.
• Don't relax at lunch or in breaks. You're not usually scored there, but staff are around. Be friendly with other candidates; they aren't your opponents in a typical scoring system.
• Save some energy for the interview, which often comes late in the day.

Example: opening the role-play

A made-up brief: you're a team leader meeting a team member whose reports have been late three weeks in a row.

Notice: purpose stated in the first sentence, a fact rather than a judgement, then an open question. That gives the actor room to reveal the hidden issue, which might be a personal problem or an unclear deadline.

Mistakes to avoid

Practising the role-play format out loud helps more than reading about it. In Speaking Coach you can choose scenes like "Handle a rude customer" or "Give tough feedback", or describe your own, and set the pressure from Gentle to Tough.