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ECDLarge is supported by the National Science Foundation under grant DRL-0733172 (An Application of Evidence-centered Design in Large Scale Assessment). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation..

Principal Investigators
ECDLarge is led by Co-Principal Investigators, Geneva Haertel (Center for Technology in Learning, SRI International) and Robert Mislevy (Department of Measurement, Statistics, and Evaluation at the University of Maryland).


The Center for Technology in Learning's (CTL) mission is improving learning and teaching through innovation and inquiry in computing and communication. SRI International, a nonprofit research institute, is a pioneer in the creation and application of innovative solutions for governments, businesses, foundations, and other organization.

University of Maryland EDMS The Department of Measurement, Statistics and Evaluation (EDMS) at the University of Maryland is one of the nation's best programs in quantitative methods.
pearson measurement
  Pearson Educational Measurement is a well-respected developer and administrator of large-scale assessments.
Minnesota Dept. of Ed Minnesota Department of Education is a leader in large-scale online assessments in the United States.

Friends and Associates
Various support services are provided by our friends and associates.
Code Guild Codeguild offers expert services to help clients design and implement powerful, scalable, appropriate solutions. Services include conceptual design and technology strategy, database schema and API specification, and web application design and implementation. Codeguild supplied design and implementation services to ECDLarge.
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