Bias does its most damage at decision points: who gets hired, how performance is rated, who is promoted and who is given stretch opportunities. This article sets out a simple bias check that leaders can use before people decisions, and explains why it matters for fairness and psychosocial safety.
Why decision points matter
Everyone has biases. They are mental shortcuts that help us process information quickly. Most of the time they are harmless. But at moments where we judge people, the same shortcuts can lead to unfair outcomes, especially when decisions are quick, criteria are vague, or the decision-maker is under pressure.
Unfair people decisions are not only an inclusion issue. Poor organisational justice is a recognised psychosocial hazard. When people believe decisions are biased, trust falls, engagement drops and conflict rises.
Four biases to watch for
Affinity bias. We tend to favour people who are like us: similar backgrounds, interests, communication styles or career paths. It often shows up as "good cultural fit."
Proximity bias. We tend to rate people we see more often more favourably. In hybrid workplaces, this can disadvantage people who work remotely, part-time or flexibly, including many carers and people with disability.
Confirmation bias. Once we form a view of someone, we notice evidence that supports it and overlook evidence that does not. An early impression can shape a whole year's performance rating.
Familiarity bias. We prefer the known option. We back the person we have worked with before rather than the candidate whose strengths are less familiar.
Our articles on inclusive leaders managing bias and the SPACE2 model for mindful inclusion explore these patterns further.
A bias check before people decisions
Before finalising a hiring, rating, promotion or development decision, pause and ask:
- What are the criteria, and did I set them before I looked at the people?
- What evidence am I relying on, and is it about the work or about the person?
- Am I favouring someone because they are like me, or because I see them more often?
- Would I reach the same conclusion if this person were from a different background, worked a different pattern, or communicated differently?
- Whose input have I not sought?
- Can I explain my reasoning clearly to someone who disagrees?
Narrate the reasoning
One of the most effective practices is simple: narrate the reasoning. Before a decision is made, say out loud, or write down, why you are reaching it, linked to the agreed criteria.
This slows down fast thinking, makes hidden assumptions visible, and allows others to test the logic. In panels and calibration meetings, asking each person to explain their reasoning against the criteria, before hearing others' views, reduces groupthink and the influence of the most senior voice.
Build fairness into the system
Individual checks help, but systems matter more. Organisations can:
- use structured interviews with consistent questions, as outlined in Managing bias in hiring
- define performance criteria clearly and apply them consistently, as discussed in Eliminating bias from performance appraisals
- use diverse panels and calibration discussions
- review outcome data by gender, cultural background, age, disability and work pattern
- check that remote and flexible workers have equal access to opportunities
Our Inclusive Hiring program and unconscious bias training help leaders build these habits.
The bottom line
Bias is not a character flaw, but unchecked bias in people decisions creates unfairness, legal risk and psychosocial harm. A short, deliberate check at the moment of decision is one of the most practical tools a leader has.
To build fairer decision-making in your organisation, explore unconscious bias training, inclusive leadership or contact us.