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Validation Of The Item-Attribute Matrix In Timss-Mathematics Using Multiple Regression And The Lsdm, Lin Ma
Validation Of The Item-Attribute Matrix In Timss-Mathematics Using Multiple Regression And The Lsdm, Lin Ma
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For many cognitive diagnostic models, the item-attribute matrix (or Q-matrix) is an essential component which displays the relationship between items and their latent attributes or skills in knowledge and cognitive processes. However, it is a challenge to develop an effective Q-matrix.The purposes of this study were (1) to validate of the item-attribute matrix using two levels of attributes (Level 1 attributes and Level 2 sub-attributes), and (2) through retrofitting the diagnostic models to the mathematics test of the Trends in International Mathematics and Science Study (TIMSS), to evaluate the construct validity of TIMSS mathematics assessment by comparing the results of …