This document discusses improving the accuracy of measuring return on investment (ROI) for Hispanic marketing. It identifies issues with current TV measurement, sales data, and modeling techniques. Specifically, TV data lacks granularity at the local level and sales may undercount Hispanic consumers. The document recommends more precise TV and sales data, addressing best practices for modeling Hispanic marketing's impact on total and Hispanic-specific sales. It also outlines AHAA's plans to work with data and modeling partners to improve inputs and develop education programs.