Assessment Centre: Definition and Best Practices in HR

Why Use an Assessment Centre

For growing SMEs or strategic hirings, the assessment centre offers significantly higher predictive value than traditional interviews. It allows observation of real candidate behaviours in simulated professional situations, simultaneous testing of technical, relational and managerial competencies, and direct comparison of multiple candidates under identical conditions. The presence of multiple evaluators cross-references observations and reduces individual biases. This method is particularly relevant for management roles, key commercial positions, or functions requiring strong relational competencies.

Typical Exercises by Role

Examples of Exercises Tailored by Profile

Role	Recommended Exercise	Competencies Evaluated	Duration
Sales	Negotiation role play with difficult client	Objection handling, active listening	30 min
Team Manager	Conflict resolution between colleagues	Leadership, fairness, decision-making	20 min
Project Manager	Problem project case (delay + upset client)	Structuring, prioritisation, pragmatism	30 min
All Profiles	Mini collective project (improve a process)	Initiative, collaboration, synthesis	45 min

Organising an Assessment Centre in an SME

Define Critical Competencies

Identify 4 to 6 key competencies to observe (leadership, negotiation, problem-solving).

Design 3 to 5 Targeted Exercises

Each 30 to 45-minute exercise should reflect real company situations.

Train Observers

Common evaluation grid and objective criteria shared before the session.

Invite 3 to 6 Pre-selected Candidates

A half-day is sufficient for SMEs. Beyond 6 candidates, observation becomes difficult.

Observe Without Intervening

Note observable behaviours in real time without steering the exercises.

Debrief Between Evaluators

Confront observations to dilute individual biases and build consensus.

Feedback to Candidates

Constructive feedback even for non-retained candidates strengthens your employer brand.

Common Mistakes to Avoid

Exercises detached from operational reality, absence of evaluation grid, exercise overload, insufficient debriefing time, and confusion between cultural fit and cloning. An in-house Assessment Centre with 3 well-designed exercises already provides significant value.

Frequently Asked Questions

How many candidates should I invite to an Assessment Centre?

Between 3 and 6 candidates represents a good balance for an SME. Fewer than 3 limits group dynamics interest; more than 6 becomes difficult to observe properly. The ideal is 4 to 5 candidates for a half-day session with 2 observers.

What duration should I plan for an SME Assessment Centre?

A half-day (3 to 4 hours) is sufficient for an effective SME assessment centre. Large companies sometimes organise full days, but this isn't necessary to gain valuable insights. Plan 30 minutes welcome, 3 thirty-minute exercises and 30 minutes internal debriefing.

Can an Assessment Centre be organised remotely?

Yes, with videoconference tools and collaborative platforms like Miro or Google Meet. Case studies and presentations adapt well to virtual format. Group exercises are more delicate but remain possible with good technical preparation.

Should candidates be paid for their participation?

Not legally required, but for senior roles or long sessions (over 3 hours), providing travel allowance or lunch is a sign of respect and improves your employer brand.

Structure Your Evaluations with Aurelia

Exercise templates by role type, standardised evaluation grids, session planning and centralisation of notes from all evaluators.

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