Psychological (adjective)

1. Of or relating to the mind or mental processes.
2. Of or relating to the study of psychology.

Origin:

Late 19th century from psychology + -al, from the greek -ikos meaning pertaining to.

Examples:

1. She received psychological treatment for her anxiety.
2. The psychological effects of abuse can be devastating.
3. The psychologist evaluated his psychological state.
4. Psychological research has shown that stress can affect health.
5. The psychological test was designed to measure intelligence.