Effective group decision making is crucial for any organization or team to succeed. Making informed decisions with input from multiple perspectives can lead to better outcomes, increased engagement, and a more cohesive work environment. However, group decision making can be challenging, as individual biases and groupthink can hinder the process.

In this blog post, we will explore several strategies that can help groups make better decisions. From keeping the group small to appointing a strategic dissenter, each strategy is designed to prevent biases and promote collaboration. By incorporating these practices into your group’s decision-making process, you can create a culture that values diverse perspectives, fosters creativity, and achieves better outcomes.

Keep the Group Small

One of the main challenges of group decision making is that larger groups can lead to biased decisions. When groups become too large, it can be difficult to manage the group dynamics, and individual voices may become drowned out by the opinions of others. This can lead to a phenomenon known as groupthink, where the desire for consensus overrides critical thinking and can result in suboptimal outcomes.

To prevent this, it’s important to keep the group small. Smaller groups are more effective at problem-solving and decision making because everyone has an opportunity to contribute and be heard. A good rule of thumb is to keep the group size under ten people. This allows for enough diversity of perspectives while still keeping the group small enough to avoid groupthink.

Choose a Heterogeneous Group

Another common challenge of group decision making is homogeneity. When a group is made up of people who are similar in background, experience, or opinion, it can lead to biased decision making. This is because people tend to be more comfortable with those who are similar to themselves and may be less likely to challenge each other’s assumptions.

To avoid this, it’s important to choose a heterogeneous group. This means selecting people who have diverse backgrounds, experiences, and opinions. When people with different perspectives come together to solve a problem, they are more likely to generate innovative solutions and challenge each other’s assumptions.

Appoint a Strategic Dissenter

One effective way to improve group decision making is to appoint a strategic dissenter. This is someone who is empowered to challenge the team’s decision-making process and offer alternative viewpoints. The goal is not to create conflict, but rather to ensure that the group considers a wide range of options before making a decision.

Appointing a strategic dissenter can lead to significant improvements in decision quality and outcomes. By providing a different perspective, the dissenter can help the group avoid groupthink and ensure that all ideas are considered. It’s important to choose the right person for this role – someone who is respected by the group, has a different perspective, and is comfortable challenging the status quo.

Collect Opinions Independently

Another way to prevent biases and groupthink in group decision making is to collect opinions independently. This means gathering opinions individually before sharing thoughts with the group. When people are asked to share their thoughts before hearing from others, they are more likely to provide honest and independent opinions.

Collecting opinions independently can also prevent group polarization, where group members become more extreme in their views as a result of group discussion. By first collecting opinions independently, group members are less likely to be swayed by the opinions of others and more likely to consider a range of options.

Provide a Safe Space to Speak Up

In order to make effective decisions, it’s important that everyone feels comfortable sharing their opinions and ideas. This requires creating a safe space where people feel free to speak up without fear of judgment or retribution. Encouraging reflection on and discussion of divergent opinions, doubts, and experiences in a respectful manner can help to create such an environment.

Providing a safe space to speak up is particularly important for group decision making because it allows everyone to contribute to the conversation. By encouraging everyone to share their thoughts and ideas, the group can consider a wider range of options and make a more informed decision. This requires creating an environment where everyone feels heard and valued, even if they don’t ultimately agree with the group’s decision.

Don’t Over-Relay on Experts

While experts can provide valuable insights, over-relying on them can hinder effective group decision making. Inviting experts to provide their opinion on a clearly defined topic and position them as informed outsiders is recommended. This approach ensures that the group can consider expert opinions while still maintaining its independence and critical thinking.

It’s important to remember that experts are not infallible and can be subject to biases and assumptions. Additionally, experts may not have a complete understanding of the specific context or dynamics of the group. By incorporating expert opinions into the decision-making process while still maintaining a critical perspective, groups can make more informed decisions.

Share Collective Responsibility

Finally, it’s important to share collective responsibility for the group decision-making process and its final outcome. Negative tendencies can be counteracted if different roles are assigned to different group members based on their expertise, and all members should feel accountable for the group’s decision making process and its final outcome.

Sharing collective responsibility helps to ensure that everyone is invested in the decision-making process and is committed to making the best decision possible. When everyone feels responsible for the outcome, they are more likely to actively participate in the decision-making process and to work together to ensure that the final decision is the best one possible.


In conclusion, effective group decision making is essential for any organization that wants to make informed and effective decisions. By keeping groups small, choosing a heterogeneous group, appointing a strategic dissenter, collecting opinions independently, providing a safe space to speak up, avoiding over-reliance on experts, and sharing collective responsibility, groups can make better decisions.

It’s important to remember that effective group decision making is a process, not an event. It requires ongoing effort and attention to ensure that biases and groupthink are avoided and that everyone feels comfortable sharing their opinions and ideas. By following these guidelines and staying committed to the process, groups can make better decisions and achieve their goals more effectively.

About the Author: Geoffrey Byers
Geoffrey is one of the world's foremost Designers. He is also a Serial Entrepreneur, Author, Speaker, and Mad Scientist. Hypothesis-Driven experimentation is his love language.