According to Carl Rogers, the main obstacle to effective communication is people's tendency to evaluate.

According to Carl Rogers, people's tendency to evaluate is a major barrier to effective communication. Rogers believed that when people evaluate, they are not truly listening or understanding the other person, but rather forming judgments about them. This can lead to misunderstandings and breakdowns in communication. Rogers believed that effective communication requires a nonjudgmental, empathetic approach where individuals listen and reflect back what they hear instead of evaluating or judging.