The Analyzing Item Discrimination Index Estimated by Using DINA Model Parameters

Oğuz Tahsin Başokçu

Abstract

In this study, how to interpret the outcomes when using the DINA model parameters, which is one of the Cognitive Diagnostic Models for adaptation of the test development process, is studied. In this sense; DINA model which determines if the respondents have enough qualifications to answer the item correctly, provides to analyze the structure of the item difficulty parameter which is determining in test development process. The aim of this study is to explore the differences and common points of discrimination index of items in a developed test which are analyzed by traditional methods and the DINA model.

Keywords

Congnitive Diagnosis Models, DINA Model, Test development process, discrimination index

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