Confirmatory Factor Analysis (CFA) Diagnostic Tests of Mathematics Learning Difficulties of Elementary Student
Septiawan, Muhamad Arfan
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Mathematics is a highly structured knowledge. Mathematical skills should be built from the previous skills, the prerequisite skills must be completed before moving on to the next material. If misconception occurs in the previous material it will cause difficulties in the next level. Several instruments on diagnostic tests of mathematics learning difficulties have been developed, but most existing instruments are subjective tests like essays form that have limitation of material tested, and also require considerable time in checking student’s answers. However, Kuesari (2014) in his dissertation developed an objective test instrument refers to the scoring of politomus. The purpose of this research is to analyze the validity of construct of diagnostic test instrument of mathematics learning difficulties which have been developed. Instruments were distributed to 184 students in fifth elementary grade. Confirmatory Factor Analysis is used to see a good models on diagnostic instruments. This validity tries to know the suitability of the item with the indicator to measure diagnostic tests of mathematics learning difficulties of elementary students in Yogyakarta.