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Unpublished Paper
Rasch Maximum Likelihood Estimation for Theta and W-scores with Panel Study of Income Dynamics Woodcock-Johnson Revised Achievement Raw Scores
(2014)
  • Ezekiel J Dixon-Román, University of Pennsylvania
Abstract

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.

Keywords
  • PSID,
  • Woodcock-Johnson,
  • W-Scores,
  • Rasch
Publication Date
2014
Citation Information
Ezekiel J Dixon-Román. "Rasch Maximum Likelihood Estimation for Theta and W-scores with Panel Study of Income Dynamics Woodcock-Johnson Revised Achievement Raw Scores" (2014)
Available at: http://works.bepress.com/ezekiel_dixon-roman/15/