Waterford Early Learning has been formally assessed in a variety of schools and districts of varying size, location, and socioeconomic status, and results are consistent in supporting the software’s considerable effectiveness. The consistency of the research results, both within and between studies, is striking. In each of the studies, students using Waterford programs outperformed comparison-groups in most, if not all, of the examined assessment measures. In no case did the comparison group outperform Waterford students. Waterford has always focused its development and iteration on research; because of this, its software has demonstrated remarkable strength, robustness, and adaptability. Results have been consistent in a wide variety of early-education contexts, regardless of which assessments have been used. Waterford’s software has been proven to be a flexible tool for helping children reach their full potential. (author abstract)