chapter 10 191 exploring the role of Technology-Based Simulations in Science Assessment: The Calipers Project Edys S. Quellmalz WestEd Angela฀H.฀DeBarger,฀Geneva฀Haertel,฀and฀Patricia฀Schank SRI International Barbara฀C.฀Buckley,฀Janice฀Gobert,฀and฀Paul฀Horwitz Concord Consortium Carlos C. Ayala Sonoma State University _______ This฀material฀is฀based฀upon฀work฀supported฀by฀the฀National฀Science฀Foundation฀under฀ Grant฀No.฀0454772฀awarded฀to฀SRI฀International,฀Edys฀Quellmalz,฀Principal฀Investiga- tor,฀and฀transferred฀to฀WestEd฀under฀Grant฀No฀0741029.฀Any฀opinions,฀findings,฀and฀ conclusions฀or฀recommendations฀expressed฀in฀this฀material฀are฀those฀of฀the฀author(s)฀ and฀do฀not฀necessarily฀reflect฀the฀views฀of฀the฀National฀Science฀Foundation.฀Contact:฀ equellm@wested.org. Current versions of the assessments can be found at http://wested. org/calipers. Copyright © 2008 NSTA. All rights reserved. For more information, go to www.nsta.org/permissions.