Science Assessment Item Collaborative High School Item Cluster Prototype

SAIC Cover Image

On behalf of the Council of Chief State School Officers (CCSSO) Science Assessment Item
Collaborative (SAIC) state members, WestEd’s science content and assessment specialists
are pleased to present this High School Item Cluster Prototype for assessment of the Next
Generation Science Standards (NGSS). This prototype is designed to follow the principles
and recommendations set forth in the SAIC Assessment Framework and Item Specifications
Guidelines for an NGSS-aligned large-scale summative assessment item cluster. Its developers
are optimistic that, if it is considered in conjunction with key sections of the Assessment
Framework, it will serve as an initial building block for the development of large-scale summative
assessments measuring the NGSS.


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