These Technical Appendices for the report "Funding Student Need: Evaluating Measures of Need in California's TK-12 Funding Formula" contain: (1) Data Sources and Definitions; (2) Universal School Meals Differences-in-differences; (3) Comparing FRPM and Other Poverty Measures; (4) LCFF Impact on Low-Income Identification; (5) Predictive Power of SES Indicators; and (6) Alternative Formula Simulations. [Additional funding for this report was provided by the Windy Hill Fund.]