Under subcontract to Chesapeake Research Associates, IMPAQ assisted with an evaluation of the Creative Curriculum for Preschools. First developed in 1988 by Teaching Strategies, Inc., this curriculum is among the most widely used in preschool programs in the United States. The purpose of the project was to conduct an independent random assignment evaluation of the Creative Curriculum. This evaluation assessed the impact of the curriculum on the classroom environment, children’s development and kindergarten readiness, and whether the curriculum can be implemented with fidelity. The evaluation was conducted in 45 preschools and included the collection of program background data, parent and child information, pre-and-post test measures, classroom observation data, implementation and fidelity data, and site visits. IMPAQ was responsible for all aspects of the field data collection task. Major activities under this task included: recruiting and hiring classroom assessors; conducting classroom assessor training; conducting student testing and classroom observations during the fall and spring across two school years; and ensuring quality control.