Includes bibliographical references (p. 66-71). ; The purpose of this study was to explore the level of understanding of the predictive test result and subsequent impact of testing for a predisposition to HNPCC. Using a qualitative research design, in-depth interviews were conducted with ten individuals (all mutationpositive and asymptomatic for CRC) subsequent to the disclosure of their predictive test result. The use of personal interviews could construct rich descriptions of the circumstances faced by these individuals, following their predictive testing for HNPCC.