TIMSS (Third International Mathematics and Science Study) is the largest, most ambitious study of comparative education ever attempted. Despite the TIMSS Subject Matter Advisory Committee's best efforts, not all test items truly reflect student math and science achievement. Some items have more than one correct response; some are not grounded in…

Describes the rationale and development of a new screening test, Developmental Indicators for the Assessment of Learning-3 (DIAL-3), which is based on previous editions. Empirical research is presented to document item additions and deletions as well as the continued maintenance of three performance areas: motor, concepts, and language. (Author/CR)