n. a test designed to measure academic achievement and determine grade-level placement (1983). As to reading, the results are norm- and criterion-referenced. As to reading, spelling, and math for grades 1 to 12, the results are grade-referenced. Further organized into clusters of 6 to 10 items each, the test progresses from easy clusters to more difficult ones until the level wherein students fail to perform satisfactorily.
BASIC ACHIEVEMENT SKILLS INDIVIDUAL SCREENER (BASIS): “A Basic Achievement Skills Individual Screener (BASIS) serves as a reference for screening students as to grade level and measuring their academic achievement as individuals.”