Those supporting the doctor of psychology degree (psy. d.) argue in favor of:

Those supporting the Doctor of Psychology degree (Psy.D.) argue in favor of "the Boulder model of training clinical psychologists".
Boulder Model refers to a training model for graduate projects that tries to prepare connected clinicians with an establishment of research and logical practice. It was at first created to manage clinical psychology graduate projects authorize by the American Psychological Association (APA).

There is lots of evidence