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NOTE: Development on a new site for SmarterApp content is underway! With the new site, we will begin transitioning SmarterApp resources into an easier-to-use, accessible interface.

Only SmarterApp content updated in 2020 and after should be considered current and accurate. If you plan to use, are looking for specific information, or have any questions about content on this site, please contact us at


The SmarterApp lab is a home for experimental projects in assessment technology.

ARI: Accessible Rendered Item (Format)

ARI is an experimental format for storing and transmitting pre-rendered assessment items with optional accessibility features. Distributing pre-rendered assessment items in a test package can facilitate innovation in assessment item types, increase fidelity of assessment delivery, and reduce the cost and complexity of compatible assessment delivery systems. Click here for more.

Mathematical Reasoning Project Quantitative Analysis

In 2015 and 2016 Smarter Balanced and UCLA CRESST performed a quantitative analysis of mathematical reasoning assessment features in grades 4, 8, and 11. Click here for the report

As of Fall 2018 the Smarter Balanced Test Delivery System (TDS) is no longer supported.

The code base and documentation for the TDS is available within the Smarter Balanced GitHub repository.

Creative Commons License Unless stated otherwise, all content on is licensed under a Creative Commons Attribution 4.0 International License.