EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT 1974, 34, 417-422. 910 subjects were followed from pre-kindergarten through the latter part of first grade. It was found that scores on the Metropolitan Readiness Tests (MRT) obtained prior to kindergarten entrance correlated .65 with MRT scores obtained one year later, at pre-first grade level. Pre-kindergarten MRT scores predicted late first grade achievement in reading, spelling, and arithmetic approximately as effectively as did MRT scores obtained at prefirst grade level. Pre-kindergarten MRT norms based on the study sample are presented. THERE is increasing recognition of the importance of assessing readiness skills prior to actual school entrance in order to meet more adequately the needs of kindergarten pupils. However, the most widely used school readiness measures, the Metropolitan Readiness Tests (MRT) and the Gates Reading Readiness Test, were standardized on pupils nearing completion of the kindergarten year or in the early weeks of first grade. They do not provide normative data at the preschool level. In the absence of school readiness measures normed appropriately for use with beginning kindergarten children, school personnel are often forced to rely upon subjective evaluations of children's abilities in their efforts to establish kindergarten curricula appropriate for individual class members as well as for the total group.