Identifying 9 Types of Unconscious Bias at Work

As more and more companies set their sights on diversity and inclusion, unconscious bias is becoming a phrase that we’re hearing more about in the workplace. Across industries, company leaders and decision-makers are ramping up efforts to recognize bias in their organizations’ recruiting, hiring, and management practices to create a better workplace culture for all. 

As individuals, being able to identify unconscious biases in ourselves and others can help us make better decisions— both professionally and personally. However, understanding unconscious bias and its many forms isn’t always straightforward. In this article, we’ll break down the basics of unconscious bias including:

In this article, we’ll break down the basics of unconscious bias including:

What is unconscious bias?

Before we delve into the different types of unconscious bias, let’s talk about what unconscious bias is. 

Unconscious bias, often called implicit bias, occurs outside of a person’s conscious awareness. These biases are ingrained stereotypes and attitudes that may actually go against the beliefs that we hold but affect our actions, decisions, and understanding of the world around us on a subconscious level. Unconscious biases can be based upon anything, including demographics like race, age, gender, sexuality, appearance, and more.  

These beliefs exist deep in our minds, and oftentimes, we fail to recognize that they even exist within us. Unlike conscious, or explicit, biases, unconscious biases are not intentionally discriminatory. Over the years, scientists have concluded that our minds are wired to make assumptions and associations to help us process information faster— but that doesn’t make them any less harmful to the groups of people that they affect. 

Why is it important to recognize unconscious bias?

You may also be wondering— why is this important for jobseekers and employees? 

While bias in the workplace is certainly something that company leaders should be aware of and take steps to curb, it’s also important that employees be able to identify behaviors rooted in unconscious bias. As a current employee or future employee of any company, understanding the different types of unconscious bias can:

  • Help you identify when you or someone you know is a victim of bias
  • Give you the confidence to speak up against biased behavior that goes unchecked
  • Allow you to examine and correct your own unconscious biases
  • Help you become a more inclusive coworker and leader in your organization

Expert words of advice

“It is important for everyone, not just leaders, to understand what unconscious bias is and how it affects our decision making. 

Leaders aren’t the only ones making decisions every day that influence hiring decisions and workplace relationships that impact the company and people’s lives. Team members work with each other, are often involved in candidate interviews, and can interact externally with customers and stakeholders.

It is critically important to be aware of our unconscious bias to avoid the use of mental shortcuts that lead to snap judgments about people’s talents, character, or abilities, which tend to be mostly based on race and gender.

The goal is ultimately to reduce bias in attitudes and behaviors at work, from hiring and promotion decisions to interactions with customers, partners, and colleagues.”

—Mary Chapman, Manager of Talent & Employee Experience at

By understanding and putting a name to the different types of bias, we open up the door for transparent conversation and change to occur within workplaces.

9 types of unconscious bias 

Unconscious bias comes in many different forms. Here are nine types to be aware of. 

1. Affinity bias

We often gravitate towards people who are like us, whether it be based on appearance, background, or beliefs. This is known as affinity bias. While it’s rooted in finding belonging and seeking comfort, when we have an affinity for those who are like us, we unintentionally shut out those who are different. 

Affinity bias can result in a room full of people who all look, think, or believe the same thing, leaving little room for new ideas and points of view. This can hurt the effectiveness of a business, negatively impact a team’s growth, and hinder a person’s individual leadership abilities.

Expert words of advice

Affinity bias is something to watch out for. 

The “like us” syndrome is very real and can keep a company or team from being an inclusive and belonging team.  If we are unable to see the value in other people’s differences and experiences, and are only able to find value in those like us, we will struggle to build teams that can think outside the box with the gift of diversity of thought and experience.”

—Mary Chapman, Manager of Talent & Employee Experience at

2. Appearance bias

It can be easy to make snap judgments based upon the appearance of an individual. Some examples of appearance-based biases include:

  • Beauty bias: People treat those perceived as attractive or beautiful more positively. 
  • Weight bias: People pass negative judgment based upon a person’s weight. 
  • Height bias: Taller people are more likely to be perceived as authoritative and leader-like, whereas shorter individuals— particularly men— are more likely to encounter negative height bias, according to studies.

3. Confirmation bias

We all have existing beliefs and values. Confirmation bias is the tendency to seek out and interpret new information in a way that confirms what you already believe. Not only can confirmation bias be harmful to others, but it can also affect your own decision-making on the job. 

Take this story for example:

A company wants to roll out a new service and the marketing team believes it will be a big hit. Part of the team is assigned the task of market research. During their research, they see several indicators that the service may not be as profitable as previously thought but choose to interpret that data as an outlier. Instead, they only include studies that confirm what the team already believes. 

In this instance, the team does not take all data into consideration; instead, they seek out information that confirms what they already believe. Confirmation bias can cloud our judgment and keep us trapped in cycles of other biases.

4. Attribution bias

Attribution bias correlates people’s actions to unrelated (or even untrue) characteristics. This bias causes us to make inferences about the causes of events or behaviors without necessarily considering all of the facts.

Imagine you have a coworker that is frequently late to work. Thanks to attribution bias, you may assume that they are lazy, don’t care about their job, or have a poor work ethic. The reality of the situation may be that they rely on public transportation, which is unreliable in your city.

5. Gender bias

Unconscious gender bias is unintentional associations based on a person’s gender, often stemming from traditions, values, social norms, or culture.

Studies show that unconscious gender bias leads to more favorable treatment of men compared to women. Even in instances where female candidates have similar skills and job experiences, men are often perceived as being more qualified and chosen for job offers or promotions. It is also evident in the gender pay gap. As of 2023, research shows that women still earn only 82 cents for every dollar earned by men. What’s more, it’s a statistics that hasn’t changed much over the past two decades.

6. Age bias

Age bias occurs when we make judgments about individuals solely based on their age. For instance, people often associate young people with lacking experience or judgment. On the other hand, young people may equate old age with being outdated or behind-the-times. 

7. Authority bias

Authority bias is the tendency to place more weight on the opinion or idea of an authority figure. Similarly, authority bias can lead people to treat people in positions of authority or power more favorably than those who don’t hold high-level positions.

8. The halo effect

The halo effect is the tendency to use an overall positive impression of a person to influence other judgments of their character. Oftentimes, the halo effect begins as a first impression or when we learn a tidbit of information about a person. For example, if we perceive someone as being nice when we meet them, we may also think of them as intelligent, social, and generous— even if we have no information to base those judgments on. 

9. The horn effect

The horn effect is closely related to the halo effect. But instead of making a positive initial judgment, the horn effect starts with a negative judgement. This, in turn, causes us to assess other traits of the person negatively. If a coworker is having a bad day and snaps at us, that may color our judgments of them in other ways. Instead of acknowledging that they were having an off day, we may label them as rude, unkind, and unfriendly. 

The bottom line

Understanding and recognizing unconscious bias is crucial in creating a workplace that is fair, diverse, and inclusive. All types of unconscious bias can have significant impacts on hiring decisions, promotions, and employee morale.

By acknowledging these biases and actively working to mitigate their effects, we can create a more equitable workplace. It is essential to promote awareness and education around unconscious bias, encourage open and honest communication, and create opportunities for people from diverse backgrounds to contribute and succeed.

Ultimately, creating a workplace that is free from unconscious bias benefits everyone, enabling us to build stronger, more productive teams that embrace and value diversity.