If cathy blames her history teacher for her poor performance on a history test she is most likely engaging in what?

If Cathy blames her history teacher for her poor performance on a history test she is most likely engaging in: Self serving bias

Self serving bias refers to a way of thinking that always perceive ourself in a positive manner. People with self-serving bias often willing to over look their own mistakes in order to avoid the feeling of failure, which cause them to constantly blame other people for their own mistake.

would it be plagiarism to copy and paste off of here? ?