How does personal bias influence board decisions?

“As a director, I undertake to make decisions as objectively as possible and be alert to the risk of bias or groupthink.”

Principle 5, Fairness: Institute of Directors Code of Conduct

As a director — or someone preparing for a board role — your ability to make sound, balanced decisions is essential.

We all have personal biases — they are a natural part of how the human brain processes information. Biases are mental shortcuts shaped by our experiences, upbringing, culture, and environment. While they can help us make quick decisions, they can also cloud our judgement, limit objectivity, and affect how we view others and make decisions — often without us even realising it.

In a leadership or a boardroom setting, unchecked bias can have significant consequences. It can influence how we assess risk, who we trust, whose voices we value, and what options we consider. Bias can lead to groupthink, reinforce inequality, or cause us to overlook valuable perspectives and ideas.

Recognising your own biases doesn’t make you a bad leader — it makes you a more self-aware one. Good governance depends on critical thinking, open dialogue, and the ability to challenge assumptions — including our own. By learning to identify and question personal biases, directors and aspiring leaders can make fairer, more informed, and more inclusive decisions.