In Lousianna, and New Mexico, clinical psychologists can write prescriptions, but experimental psy cannot.
Clinical psychologists attempt to directly treat human problems of individuals or groups.
"Clinical psychologists aim to reduce psychological distress and enhance and promote psychological wellbeing. They often work in health and social care settings, as part of a multidisciplinary team. They use the methods and findings of psychology and psychological theories with clients to enable them to make positive changes in their lives.
"Clinical psychologists work with people of all ages who experience mental or physical health problems. These may include:
anxiety and depression;
serious and enduring mental illness;
adjustment to physical illness;
personal and family relationship problems;
Look up "experimental psychologist" on Google to make a comparison.
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.