Value-Added Resources

Ohio's Value-added system uses an advanced methodology Education Visualization and Analytics Solution (EVAAS) initially formulated by William Sanders and further developed by Sanders and colleagues at SAS Institute, Inc.  These procedures, while computationally complex, have a substantial body of empirical testing in research literature to support them. 

 

Value-Added Data Access

• Access the secure Value-Added website (EVAAS) and your district's value-added diagnostic data.
• Updating or Adding District Admin Accounts

 

Value-Added Roster Verification

• Value Added Roster Verification

 

Tools and Resources

• Common Questions About Ohio's Value Added Student Growth Measures
• Regional Data Lead Network
• Ohio EVAAS Virtual Library

 

 

Technical reports

• Predictive Modeling Approach for Value-Added
• EVAAS Technical Document and Business Rules - Updated 10/3/2023
• EVAAS Value-Added Measures for Dropout Recovery Programs
• Accelerated Students and Value Added

 

Related Research

• Comparisons Among Various Educational Assessment Value-Added Models (William L. Sanders)
• An Investigation of Two Nonparametric Regression Models for Value-Added Assessment in Education (S. Paul Wright)
• Measurement of Academic Growth of Individual Students Toward Variable and Meaningful Academic Standards (S. Paul Wright, William L. Sanders, June C. Rivers)

Last Modified: 1/10/2025 4:20:11 PM

---