In specific aim 2 we will employ trained behavioral interventionists to offer a family-based behavioral intervention targeting healthy eating and decreased sedentary behavior/increased physical activity to overweight/obese children ages 9-12 and their parents; and to evaluate parent and child adherence to attendance and behavioral intervention factors. Self-monitoring reports of the child's behavioral changes (e.g., decrease in number of "red foods"[foods high in calories and fat] consumed weekly and decreased time spent each week watching TV, using the computer, and playing video games) will be described, as will any changes in BMI.