Developing an evidence base in clinical psychology.

We suggest a process for clinical psychologists to collect an evidence base and join the evidence-based movement already underway in many areas of medicine. To illustrate this process, we review the history of cholesterol discovery, evaluation, and management as an evidence-based process, extracting lessons applicable to the field of psychology. By examining these lessons and building consensus, clinical psychologists can advance the movement along an evidence-based practice continuum, improve client care, build a more informative evidence base, and promote equitable reimbursement for psychological practice.