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Theses/Dissertations

2009

University of Iowa

Bayesian

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Full-Text Articles in Education

Using Collateral Information In The Estimation Of Sub-Scores --- A Fully Bayesian Approach, Shuqin Tao Jul 2009

Using Collateral Information In The Estimation Of Sub-Scores --- A Fully Bayesian Approach, Shuqin Tao

Theses and Dissertations

Educators and administrators often use sub-scores derived from state accountability assessments to diagnose learning/instruction and inform curriculum planning. However, there are several psychometric limitations of observed sub-scores, two of which were the focus of the present study: (1) limited reliabilities due to short lengths, and (2) little distinct information in sub-scores for most existing assessments.

The present study was conducted to evaluate the extent to which these limitations might be overcome by incorporating collateral information into sub-score estimation. The three sources of collateral information under investigation included (1) information from other sub-scores, (2) schools that students attended, and (3 ...