Development of Diagnostic Math Test for Grader 4 and Grader 5 based on the Rule Space Model

Based on the rule space model.Diagnostic math test and compiled the diagnostic test for grader 4 and grader 5 was developed.The results revealed that the test not only had good reliability and validity but also provided abundant diagnostic information.According to the diagnostic results from the test which was administered to 1159 students,the grader 4 and grader 5 performed well on whole number,elementary operation and application;however,the attributes such as measure,statistics,searching for pattern and advanced operation were not well mastered.What is more,those not-well-mastered attributes indicated the fastest growth between grade 4 and grade 5.