Unconscious bias: Recognising hidden assumptions that shape workplace decisions

Objective leadership is a myth. We like to think that as we climb the leadership ladder, our judgment becomes a sharpened tool — precise, objective and untainted by noise. The reality is a little more humbling. Even for a seasoned leader, the brain is a shortcut machine. It's designed to categorise information at speed just to keep up with modern Australian workplace demands.

I've sat in plenty of calibration meetings where "culture fit" was used as a blanket term for someone you'd hang out with. It is human nature, but when those mental shortcuts go unchecked, they can turn into blind spots that compromise the quality of our teams.

Here are a few tips for identifying and overcoming biased thinking.

How the brain takes a shortcut

Unconscious bias is a neurological default. It forms through our upbringing, social circles and the media we consume. In the office, this often manifests as affinity bias, or the tendency to gravitate toward people who share our background, uni or communication style. If someone speaks with the same cadence as you, it's likely you'll subconsciously rate their ideas higher.

Then there's the halo effect, where one positive trait (like being a great presenter) makes us assume the person is also great at unrelated tasks, like data analysis or strategic planning. Conversely, the horns effect can see a single mistake shadow a person's entire career trajectory.

Workers in inclusive teams are seven times more likely to innovate and eight times more likely to work well together than those in non-inclusive teams. When we let these biases run the show, we're leaving talent and productivity on the table.

Slowing down the fast brain

The most dangerous decisions are the ones we make quickly. When you're under pressure to fill a vacancy or delegate a high-profile project, your need-for-speed brain takes over. To combat this, intentionally build friction into your decision-making process.

I find that the best way to do this is to separate evaluation criteria from personal impressions before you even meet a candidate. If you don't define what success looks like in measurable terms, your brain will fill the gaps with bias. De-identifying resumes or using highly structured interview questions significantly levels the playing field for candidates from diverse backgrounds, ultimately benefiting your team.

Practical strategies for the daily grind

To mitigate bias, you need to address your process. If you are the only one picking the project lead, you're limited by your own perspective. Bringing in a peer or a direct report to challenge your assumptions can provide the disconfirming evidence needed to see a person's true potential. Here are a few ideas to get you started:

• Audit your delegation: Take a look at who gets the glamour work in your department. Is it always the same two people?
• Structured interviews: Ask every candidate the same questions in the same order. It sounds rigid, but it's the only way to compare apples to apples.
• Check the vibe: If you find yourself saying someone isn't quite right, ask yourself why. If you can't point to a specific skill gap, it's probably bias talking.

Build a culture of curiosity with ICML

As a senior leader, your biggest lever is your own humility. When you admit that you have biases, you give your team permission to admit the same. It shifts the culture from proving you're right to getting it right.

By modelling curiosity, you create a space where diverse thinking is a competitive advantage. Fairness is a deliberate, daily practice of questioning your own first impressions.

Build inclusive decision-making skills in our Unconscious Bias program.