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Tool Name
Tennessee Value-Added Assessment System (TVAAS)

Evaluation Type
Value-Added Models

Subject
All Subjects

Grade
All Grades

Use of Evaluation
Summative

URL
http://www.tennesseescore.org/?Page=TVAASDataSystem

Developer
This product was developed by William Sanders.

Product Description
TVAAS draws on student achievement data from all school districts in the state. It is a statistical methodology that begins with testing each student in each grade in a number of subjects. Statewide tests are administered to students in Grades 3–8 in mathematics, reading and language arts, science, and social studies as well as in high school end-of-course examinations. Data are extracted at the student level, meaning that scores can be linked to the student's demographic characteristics; special status as an English language learner; or special education student, teacher, and school. The data collected from these assessments are then analyzed using value-added analysis. Value-added analysis is a statistical mixed-model methodology whereby inputs prior to the school year of interest are controlled for, and thus, academic gains are the subject of analysis. All data are standardized to reflect valid distributions and minimize testing error.

General Target Population Information
TVAAS was developed for teachers in tested subjects and grades.

Stage of Teacher Development
Teachers in Tested Subjects and Grades

Users
TVAAS is used in Tennessee.

Research and Resources

Fisher, T. H. (1996). A review and analysis of the Tennessee Value-Added Assessment System (part two). Tallahassee, FL: Florida Department of Education.

Education Consumers Foundation. (2008). The Tennessee Value-Added Assessment System: Why it's important and how it works. Arlington, VA Author. Retrieved April 2, 2010, from http://www.mosteffectiveschools.org/sch/about.htm.

Harville, D. A. A review of the Tennessee Value-Added Assessment System (TVAAS). Unpublished manuscript. Iowa State University.

Sanders, W. L., Wright, S. P., Rivers, J. C., Leandro, J. G. (2009). A response to criticisms of SAS EVAAS. Cary, NC: SAS Institute. Retrieved April 2, 2010, from http://www.sas.com/resources/asset/Response_to_Criticisms_of_SAS_EVAAS_11-13-09.pdf 

Additional resources can be retrieved at http://www.tennesseescore.org/index.cfm?Page=ResearchResources.  


Cost
SAS provides services for the Tennessee Value-Added Assessment System, which includes the value-added analyses. Costs for this application can be found by contacting June Rivers at SAS at 919-531-1075 or june.rivers@sas.org.

Contact Information
Dr. Dan Long
Executive Director of Research, Assessment and Evaluation
Tennessee Department of Education
1252 Foster Ave.
Nashville, TN 37243
Phone: 615-253-5031

Support Available

Support is available through SAS EVAAS, which has a dedicated and experienced team available for professional development and user support (see http://www.sas.com/govedu/edu/services/effectiveness.html).

The Tennessee Department of Education also offers consulatation.