good
Self-serving bias is favoring oneself or crediting oneself. This is seen everywhere in just about everyone. Here are some examples: Comparing yourself favorably over others: "I'm a much better and...
This is our tendency to take credit for success and deny any responsibility for failure. This however, helps to protect our ego.
I am a hard worker and that is why I was promoted. It has nothing to do with the fact that my father owns the business.
Both.