What is affinity bias?

Affinity bias, also referred to as similarity bias, is the unconscious human tendency to gravitate toward other people with similar backgrounds, interests, and beliefs. While we may think that we actively make conscious choices to surround ourselves with people based on their character, the reality is that we aren’t very good at being objective when choosing who we like and want to be around. More often than not, people tend to gravitate towards others simply because they remind them of themselves.

What causes affinity bias?

There are several reasons why we might gravitate toward people like us. Our brains are wired to take shortcuts, and affinity bias is one way we simplify how we connect with others.

How does affinity bias affect diversity in the workplace?

When recruiters and leaders are always hiring, promoting, and nurturing people similar to themselves, it creates a workforce full of people of the same backgrounds, destroying diversity. This unconscious bias is one of the barriers to inclusivity that keeps people of minority identities from equal representation in the workforce on all levels.

How does affinity bias affect hiring?

Affinity bias can subtly influence hiring decisions, leading decision-makers to favor candidates who feel familiar or share similar backgrounds, interests, or experiences. This unconscious preference can limit team diversity and cause highly qualified candidates from different backgrounds to be overlooked. Recognizing these tendencies and implementing structured, objective hiring practices help reduce bias, create a more inclusive recruitment process, and build diverse, high-performing teams that drive innovation and success.

Is affinity bias always conscious?

No, affinity bias is often unconscious. It influences decisions and judgments without people realizing it, shaping who they hire, promote, or collaborate with. This bias happens when individuals naturally gravitate toward those with similar backgrounds, interests, or experiences, which can unintentionally affect fairness and objectivity in the workplace. Recognizing its impact is the first step toward creating a more inclusive and equitable environment.

Why is affinity bias a problem?

When decision-makers unconsciously favor people who share their backgrounds, interests, or experiences, it can lead to missed opportunities for highly qualified individuals. This bias can influence hiring, promotions, project assignments, and recognition, limiting diversity and innovation within teams.

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