Final answer:
Psychiatrists are medical doctors who can prescribe medication, whereas clinical psychologists have a PhD or PsyD and specialize in therapy and psychological testing but cannot prescribe medication.
Step-by-step explanation:
A significant difference between a psychiatrist and a clinical psychologist is in their education and scope of practice. Psychiatrists graduate with a doctor of medicine degree (MD) and are licensed to prescribe medication. Conversely, licensed clinical psychologists typically have a PhD or a PsyD, specializing in psychological testing and therapy.
Clinical psychologists focus on the diagnosis and treatment of psychological disorders and problematic behaviors, including providing therapy and counseling. They can work in various settings, but unlike psychiatrists, they cannot prescribe medication. They may conduct scientific research and are often involved in psychological assessment, but this is not their sole focus.
Both professions require licensure and state-specific credentials, and the path to becoming a licensed psychologist may include postdoctoral work, though some states have relaxed this requirement. It's important to note the misconception that clinical psychologists only focus on psychological assessment is incorrect; they provide a broad range of psychological services beyond assessment.