Ethylene glycol and propylene glycol are organic compounds with alcohol functional groups. The term âglycolâ is used when there are two hydroxyl groups present in neighboring carbon atoms. Their molecular formulas are different; thus they have some different physical properties.
A therapist and psychologist may differ in the degrees they received in college. A therapist can be a psychologist, psychiatrist, or counselor, but a psychologist is an exclusive psychologist but can also counsel and do other responsibilities.
Different Types of Therapists. 1  Clinical psychologists (PhD, EdD, or PsyD): Trained in psychological theories and methods. 2  Psychiatrist (MD): A medical doctor with a specialty in psychiatry. Emphasis on the biological causes of mental disorders. 3  Psychoanalyst (MD or PhD): Trained in psychoanalysis.