When studying the link between self-esteem and positive illusions, Compton (1992) identified a group which possessed high self-esteem without positive illusions, and that these individuals weren't depressed, neurotic, psychotic, maladjusted nor personality disordered, thus concluding that positive illusions aren't necessary for high self-esteem. Compared to the group with positive illusions and high self-esteem, the nonillusional group with high self-esteem was higher on self-criticism and personality integration and lower on psychoticism.[33]