psychologic factor

例句：

1. 1.The study of psychology is a complex field that requires a deep understanding of human behavior.
   心理学研究是一个复杂的领域，需要深入理解人类行为。
2. 2.The importance of psychological factors in decision-making cannot be overstated.
   在决策过程中，心理因素的重要性不容忽视。
3. 3.The researcher found that the psychological factor of fear was a significant barrier to success.
   研究者发现，恐惧这一心理因素是成功的一大障碍。