Study of how psychological disorders spread in populations and identifying contributing factors.

Status reduction due to perceived inadequacies, involving negative judgments and feelings of inferiority.

Health, social, and economic costs of mental illness, including reduced productivity and quality of life.

Percentage of a population with a specific psychological disorder within a defined period.

Predicted course of a psychological illness, indicating likely future outcomes.

Causes and factors related to psychological disorder development, including trauma and genetic predispositions.