A critical tool for modeling the presence of rare or hard-to-reach demographic groups. The ABS Database is maintained by our advanced methods team and archives sampling data, deidentified responses, and paradata from previous SSRS-administered ABS collections. Comprising data for nearly 2.1 million U.S. addresses, over 260,000 survey responses with up to 850 data points each, the database allows the SSRS team to build predictive models that effectively identify, target, and recruit respondents in a highly-tailored way.