 Siblings in the generic print condition will receive a pamphlet about colorectal cancer screening published by the Center for Disease Control. Siblings in the tailored print and telephone counseling conditions will receive messages tailored specifically to their responses on targeted attitudinal and non-attitudinal measures. Five hundred twenty four siblings meeting eligibility criteria will be randomly assigned to one of the three conditions after a baseline interview assessing CRC screening behaviors and attitudes, and it is anticipated that 427 siblings will complete the study. For siblings in the tailored conditions, baseline information will be utilized to design the tailored messages. After receiving the intervention information, participants will be interviewed again six months later regarding CRC screening behaviors and attitudes to assess the impact of the intervention. 