Volunteer participants will be screened by the RA for eligibility for the study. Demographics of age and sex will be recorded at screening. After obtaining written informed consent, each eligible participant will complete the Preference Diagnosis (PDx) web-based software program and respond "yes" or "no" to the question "I am interested in an exercise program tailored to meet my needs" at the end of the program. PDx is a software application under development at The Dartmouth Center for Health Care Delivery Science (TDC) that uses weighted values and patient assessments of perceived unfavorable aspects or "costs", versus perceived benefits, to develop a profile of preferences around knee OA treatment. An RA (trained by Catalina Gorla of TDC to administer PDx) will coach participants through using the PDx program which will be administered on a lap top computer in a private room. All participants will have their height, weight, and waist circumference measured prior to starting the application using a standardized protocol. Feasibility will be assessed by the proportion of potentially eligible participants who endorse the exercise question within a 3-month period until a maximum of 10 is reached.