4. What is the halo effect? How can it interfere with critical thinking? Give one personal experience in which the halo effect has influenced your thinking or the thinking of someone you know.The halo effect can be compared to making first impressions. This is based off of positive judgements one makes that influences further judgments of that person or product. It interferes with critical thinkingbecause it’s judgement is based upon bias instead of analysis and evaluation. In school, when a new semester starts, I would often evaluate the teacher to see if I would like them and if they were a good teacher. Their first impression would influence how I perceived them and would also determine if the class was going to be difficult for me. 5. What is belief perseverance? Explain how our own personal belief system can interfere with understanding the beliefs of others and in sometimes making poor choices.Belief perseverance is when people hold their beliefs as true, even when there is enough evidence to prove their belief incorrect. This type of thinking causes people to discredit and dismiss the information that contradicts their beliefs, leading to poor decision making.