In psychotherapy, psychological assessments are used very frequently — not merely as tools to find out your personality for fun, but as scientific evaluation tools used to plan treatment. In clinical psychology and psychiatry, this is called psychological assessment.
Self-insight is strongly correlated with treatment efficacy. Psychological tests provide objective indicators of emotional regulation, impulsivity, interpersonal style, and anxiety level, helping people understand why they become anxious in certain situations or why conflict repeats in certain relationships.
MMPI (the most famous clinical personality test), the Rorschach test (inkblot-based analysis of thought patterns), the TAT test (analyzing unconscious motivation through pictures), the BDI depression scale, and the Big Five personality test (openness, conscientiousness, extraversion, agreeableness, neuroticism) are among the most widely used.
Increased self-awareness, improved emotional regulation, better relationships, and higher treatment engagement are all documented effects. However, a test result alone never defines a person — it must always be interpreted alongside interviews, life history, and behavioral observation.