Definition: Professional geropsychologists are psychologists with knowledge, skill, training, and experience related to the aging process who specialize in assessment and intervention with older persons. The geropsychologist(s) affiliated with a professional geropsychology training program should themselves have been trained in a program that is recognized as providing training in core elements of geropsychology at one or more of the following levels of training: graduate school, internship, and/or post-doctoral level. At the Membership Committee's discretion a combination of independent learning experiences and 5 years practice in an applied geropsychology setting may substitute for this requirement.