Concerned with the relationship of a print awareness indicator to subsequent reading achievement, a study measured changes in the development of print awareness across age and grade levels as well as across time. It also compared the levels of print awareness in lower ability and educationally disadvantaged children in second and third grades to that of their predecessors in kindergarten and first grade. The sample consisted of 125 primary grade children, including two kindergarten, two first grade, and all Title I second and third grade classrooms in a central Florida elementary school. All subjects were tested with the Concepts About Print Test, Sand. Data were analyzed using Pearson-product-moment correlation, analysis of variance, linear and multiple regression analysis, and factor analysis. Scores on the Sand were found to correlate significantly with the Comprehensive Tests of Basic Skills (CTBS), Levels B, C, and I, and the Metropolitan Readiness Tests (MRT), Levels I and II. Linear trends were found for the Sand scores and the subjects' age and grade levels. Two subscales of the Sand were identified, one correlating with the MRT and the other with the CTBS. Results indicated that the Sand was an effective predictor of reading achievement for primary grade children. (Tables on test results are included.) (Author/MM)