"The purpose of this study is to assess the efficacy of Curriculum-Based Measurement (CBM) performance as a predictor of student performance on the Iowa Test of Basic Skills (ITBS) and the Washington Assessment of Student Learning (WASL) for third- and fourth- grade elementary students in a rural inland northwest elementary school. Regression analyses indicated that CBM basic skills measures were significant predictors of iTBS and WASL subtest performance. Oral reading fluency, as measured through CBM reading probes, was the strongest predictor of performance across all subject areas of both standardized tests"--Document.