This document summarizes the findings of the TESTA (Transforming the Experience of Students through Assessment) research project. The project studied assessment practices across seven degree programs at four UK universities. It found that effective assessment involved formative tasks, timely feedback, and clear learning goals and standards. Programs with these features saw students putting in more effort and being more satisfied. The project recommends that programs implement more formative assessment, quicker feedback cycles, and ensure goals and standards are unambiguously communicated to students.