The UChicago Consortium on School Research has been surveying students, teachers, and principals in the Chicago Public Schools (CPS) since 1991 using what is now known as the 5Essentials surveys. The developers categorized and grouped survey measures into what they refer to as "The Five Essentials for School Improvement." The value of these surveys is that they measure school organizational quality that predicts student academic improvement, which has been demonstrated convincingly (e.g., Bryk, et al. 2010). What used to be just a CPS instrument has since been adopted as a school improvement vehicle in several school districts across the United States. For example, the 5Essentials has been used in Minneapolis, Detroit, Florida, among other places. Since 2013, it has been administered across the state of Illinois. To address the concerns raised by school districts outside of Chicago, the current author sought to test whether the expansion of the student survey to students in grades 4 and 5 was feasible. There are number of valid reasons why there may be concerns about surveying students this young, including: (1) Younger students could have trouble reading and understanding survey question text because of lower levels of literacy; (2) Younger students could have less ability to accurately assess their observations of the context around them; and (3) Younger students could be less able to recognize and process their emotional reactions to these observations. Levenstein and Luppescu (2015) found evidence for the relationship between grade level and survey measure person fit, comparing students in the lower-middle grades and the upper middle grades. Al-Tayyip et al. (2002) found that lower levels of literacy interfered with respondents' being able to provide accurate survey data. The author takes this idea further, applying it to an investigation of the psychometric properties of survey measures obtained from students in grades 4 and 5. In order to avoid reporting back to K-5 schools on only three of the five essentials, this study tests whether students in grades 4 and 5 can provide reliable, valid survey responses on the 5Essentials. Tables and figures are appended. [SREE documents are structured abstracts of SREE conference symposium, panel, and paper or poster submissions.]