This case study explains the research procedures of a study that measured teachers' digital competency using a questionnaire and used an automated visualization platform to suggest appropriate professional development training based on their level of competency. To achieve the goal, the process was started by developing standard indicators for…

Presented at the national conference for the American Educational Research Association (AERA) in April 2009. This study examined the utility of scores on the SAT writing test, specifically examining the reliability of scores using generalizability and item response theories. The study also provides an overview of current predictive validity…

Presented at the national conference for the American Educational Research Association (AERA) in 2009. This discussed the development and implementation of the new SAT writing section.

Presented at the Annual National Council on Measurement in Education (NCME) in New York in March 2008. This presentation explores how different item weighting can affect the effective weights, validity coefficents and test reliability of composite scores among test takers.