A person who gathers information systematically so that he or she may describe, predict, and explain the phenomena being studied is called a clinical:

A) phenomenologist.
B) scientist.
C) practitioner.
D) psychometrist.

Clinical Scientist

A professional engaged in conducting research and applying scientific principles to the study, diagnosis, and treatment of psychological and behavioral disorders.

Phenomena

Observable events or occurrences that can be studied scientifically to understand certain aspects of the natural or social world.

Psychometrist

A professional skilled in administering and interpreting psychological tests.