Professor Davidson conducts his Social Philosophy class during the fall semester, and at the end of the term he is reviewing the evaluations he received from his students. Of the 30 students in his class two of them gave him negative evaluations, three of them gave neutral assessments, and 25 of them raved about how wonderful the class was. Professor Davidson completely disregards the 25 good and 3 neutral reports, and focuses only on the 2 negative ones. When he is done is feeling very unhappy and is sure that the class would be considered a failure. According to Aaron Beck, Professor Davidson is engaging in a cognitive error called ________.
Select one of the following: