This report summarizes the proceedings of a two-day workshop convened in Washington DC in September 1980. The underreporting (and otherwise misreporting) of criminal victimization experiences served as the immediate focal point for the workshop. It is of some historical note that this workshop constitutes the first known gathering together of cognitive psychologists and survey methodologists, and the first known attempt to bring the knowledge and principles of cognitive science to bear on issues having to do with the quality of survey measurement. As such, it can be considered to have played a key role in ushering in the subsequent “CASM” (cognitive aspects of survey methodology) movement.