The present investigation sought to verify the appropriateness of using the Social Physique Anxiety Scale for Children, the SPAS-C (Stadulis, MacCracken, et al., 2005), with a more diverse sample. In the 2005 studies, participants were: 1) middle school mostly White children; and 2) pre-adolescent Black females. The current study employed the SPAS-C within the conduct of a health intervention program. By examining social physique anxiety over the program's eight months, better assessment of reliability and validity was sought as well as to determine the SPAS-C's sensitivity to changes in anxiety in response to the programming. The SPAS-C is an adaptation for children based upon Martin, Rejeski, Leary, McAuley, & Bane's (1997) revised 9-item SPAS initially developed as a 12 item scale by Hart, Leary, & Rejeski (1989). The children in the current study (N = 116) varied in age from 5 to 17 years, with the majority participants (92%) between the ages of 8 and 14 years. These participants were involved in a research influenced, culturally responsive, community and school based mobile program (called Project MacD) that focused on health promotion and prevention of Type 2 Diabetes in minority male and female youth from low-income backgrounds. Three major components of the program were: physical activity with an emphasis upon tennis; healthy lifestyles especially nutrition related to Type II diabetes and obesity; and decision making which included multicultural counseling. Physical fitness, body composition, health knowledge, motivation, and tennis skills were assessed. The SPAS-C was administered when a participant joined the program and again toward the end of the program. Internal reliability (Cronbach Alpha) = .82. Principal component factor analysis supported a two-factor model, with the seven positively worded items loading together (Eigen = 3.34, % variance = 37.2%). The two negatively worded items formed the second factor. The mean (23.7) and median (24.0) were similar; skewness (.40) and kurtosis (-.40) values indicated that the distribution did not diverge from normal distribution expectations. For those participants assessed twice, an r = .63 (p = .001) supported the external reliability of the SPAS-C. When change in anxiety over the program was assessed, social physique anxiety was somewhat lower at the end of the program (M = 18.7, S = 6.8) as compared to when the participant began the program (M = 19.9, S = 7.5). The reliability, validity, and change sensitivity of the SPAS-C in assessing social physique anxiety in youth was supported. Keyword(s): community-based programs, measurement/evaluation, youth-at-risk