Emergency departments (EDs) are increasingly required to screen for social risk and social need, but existing tools are long, hindering their utility in clinical settings, and resulting in incomplete surveys. However, strategies for streamlining screening tools remain unclear. This work aimed to guide future development of an ED-based screener by using a health system's ten-item social risk/social need questionnaire to (1) compare differences in patient populations by questionnaire completeness, (2) observe patterns of responses (e.g., what questions cover the same constructs and can potentially be eliminated), and (3) test for variation in social risk/social need measurement by age. Conclusion: In this health system, incomplete social risk/social need questionnaires are common. To improve response rates, the social risk/social need framework elucidated by our factor analysis will guide the development of a consolidated questionnaire for the EDs.