Which of the following is a common barrier to effective decision-making?

Overconfidence is recognized as a common barrier to effective decision-making because it can lead individuals to overestimate their knowledge, abilities, and the accuracy of their predictions. When decision-makers are overly confident, they may disregard important information, underestimate risks, and ignore alternative viewpoints that could lead to better outcomes. This mindset can result in poor judgment and decisions that don't align with reality.

In contrast, thorough research is typically seen as a facilitator of effective decision-making, as it provides the necessary information to make informed choices. Group consensus, while sometimes challenging, can contribute positively by pooling diverse perspectives and expertise. Constructive feedback is also beneficial, as it helps refine ideas and decisions, encouraging growth and improvement. Ultimately, while confidence can be beneficial, excessive overconfidence can cloud judgment and hinder the decision-making process.