 First-degree relatives of individuals with CRC are at increased-risk of developing colorectal cancer CRC. For these increased-risk individuals current guidelines recommend initiating CRC screening a decade earlier than for those at average-risk for CRC; thus, starting at age 40, or 10 years younger than the age at which the affected relative was diagnosed with CRC. In our prior study of 504 at-risk siblings of patients with a history of CRC, diagnosed at age less than 56, we found that approximately 44 of these siblings were not compliant with CRC screening guidelines. Guided by the Transtheoretical, Health Belief and Dual Process models, our prior study identified key attitudinal and non-attitudinal predictors of screening behaviors and intentions. 