An entry-level psychologist is a fully licensed therapist or mental health expert that may still be getting mentorship and professional guidance from more experienced psychologists or counseling experts. In this career, you still have the same duties and responsibilities as any other psychologist. You make a diagnosis for a patient based on counseling sessions and then work with your patient to develop a treatment plant that fits their needs and goals. Only in certain limited cases, however, are psychologists allowed to prescribe medication to patients, and the requirements for that depend on the state in which you practice and whether or not you have taken coursework in pharmacology.