Hello,
Sorry for the basic question, but I was just wondering which was the most important statistic when interpreting an IRT graded response model? In the attached, there are five survey items in the model (responses on each item range from 1-5 on an ordinal scale). If I want to determine the one survey item which best predicts the others, which is the most relevant statistic? The coefficient of the discrim diff?
Many thanks for reading,
Tom
Sorry for the basic question, but I was just wondering which was the most important statistic when interpreting an IRT graded response model? In the attached, there are five survey items in the model (responses on each item range from 1-5 on an ordinal scale). If I want to determine the one survey item which best predicts the others, which is the most relevant statistic? The coefficient of the discrim diff?
Many thanks for reading,
Tom
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