Star Math (SM) is a popular computer adaptive test (CAT) schools use to screen students for academic risk. Despite its popularity, few independent investigations of its diagnostic accuracy have been conducted. We evaluated the diagnostic accuracy of SM based upon vendor provided cut-scores (25^th and 40^th percentiles nationally) in predicting proficiency on an end of year state test in a sample of highly achieving grade three (n = 210), four (n = 217), and five (n = 242) students. Specificity exceeded sensitivity across all grades and cut-scores. Acceptable levels of sensitivity and specificity were achieved in grade three and four but not grade five when using the 40^th percentile.

Star Math (SM) 是一种流行的计算机自适应测试 (CAT) 学校，用于筛查学生的学业风险。尽管它很受欢迎，但很少有人对其诊断准确性进行独立调查。我们根据供应商提供的分数（全国第 25^和第40百分位数）在高度达到三年级（ⁿ = 210）、四级（n = 217) 和五名 ( n = 242) 学生。特异性超过所有等级和分数的敏感性。^{使用第 40个}百分位数时，在三年级和四年级中达到了可接受的灵敏度和特异性水平，但在五年级时未达到。