The Early Childhood Data Use Assessment Tool is designed to identify and improve data use skills among early childhood education (ECE) program staff so they can better use data to inform, plan, monitor, and make decisions for instruction and program improvement. Data use is critical in quality ECE programs but can be intimidating for some ECE program staff. This tool supports growth in their data use skills. The tool has three components: (1) a checklist to identify staff skills in using child assessment and administrative data, (2) a resource guide to identify professional development resources for improving data use skills, and (3) an action plan template to support planning for the development and achievement of data use goals. Results obtained from using the tool are meant by the developers to support instruction and program improvement through increased and structured use of data.