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Educational Assessment, Evaluation, and Research

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Selected Works

Ezekiel J Dixon-Román

2014

Articles 1 - 2 of 2

Full-Text Articles in Education

Social Epistemology And The Pragmatics Of Assessment, Kenneth J. Gergen, Ezekiel J. Dixon-Román Dec 2013

Social Epistemology And The Pragmatics Of Assessment, Kenneth J. Gergen, Ezekiel J. Dixon-Román

Ezekiel J Dixon-Román

In the present offering we challenge the presumption that the educational testing of students provides objective information about such students. This presumption largely rests on an empiricist account of science. In light of mounting criticism, however, empiricist foundationalism has given way to a social epistemology. From this standpoint, empirical data are only objective for those who share assumptions and values that are themselves without foundations. Thus, the major questions to be raised about testing are not in terms of whether test results supply the truth about those who are evaluated, but concern the utility of the tests for the full …


Rasch Maximum Likelihood Estimation For Theta And W-Scores With Panel Study Of Income Dynamics Woodcock-Johnson Revised Achievement Raw Scores, Ezekiel J. Dixon-Román Dec 2013

Rasch Maximum Likelihood Estimation For Theta And W-Scores With Panel Study Of Income Dynamics Woodcock-Johnson Revised Achievement Raw Scores, Ezekiel J. Dixon-Román

Ezekiel J Dixon-Román

This appendix explains the estimation of the Rasch maximum likelihood estimated thetas using the raw scores of the Woodcock-Johnson Revised Achievement Measure in the Panel Study of Income Dynamics. It is then discussed how to estimate the W-scores from the Rasch maximum likelihood estimated thetas. The W-scores ensure stability in score changes that accounts for item difficulty and person ability for growth modeling.