Dr. Catherine Case has recently landed her first position as a clinical psychologist trainee. She was one of four simultaneously hired trainees at an outpatient family treatment center. The other three were all Afro-American, as was the supervising psychologist, Dr. Blackwell. The office manager was Afro-American as well. Dr. Case was the only white worker of the bunch. When it came time for Dr. Blackwell to give his four new trainees their first formal evaluations, he gave two of the three black trainees the highest rating, 5, in every category of performance, and both Dr. Case and the remaining black trainee no rating in any category higher than 3. Dr. Case complained to the office manager that the ratings were racially biased. In the absence of any further information, what would be your conclusion?