Search results for: Saderholm Jon C.

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Valid and Reliable Science Content Assessments for Science Teachers
Authors: Tretter Thomas R., Brown Sherri, Bush William S., Saderholm Jon C., Holmes Vicki-Lynn
The purpose of this article is to offer the validity and reliability evidence for teacher science content assessments developed as part of the Diagnostic Teacher Assessments of Mathematics and Science (DTAMS) project. It was found that validity was strengthened by systematic synthesis of relevant documents, extensive use of external reviewers, and field tests with 900 teachers during assessment development process. The subsequent results from 4,400 teachers, analyzed with Rasch IRT modeling techniques, offer construct and concurrent validity evidence.
Published: 2013
Updated: May. 18, 2014
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Identification of the Most Critical Content Knowledge Base for Middle School Science Teachers
Authors: Saderholm Jon C., Tretter Thomas R.
The article examines what science content teachers need to know in order to teach what students need to learn. Four standards documents and analysis of all four are identified in the article.
Published: 2008
Updated: Oct. 06, 2008