assessment? Are you on solid ground with your grading system? Demystify and even use statistics to answer these important questions and more in this clear, easy-to-use text for preservice and classroom science teachers and methods professors. The text s practical approach helps teachers understand how to interpret student assessments statistically and how to measure and explain the validity and reliability of those assessments. Included are a global history of testing to its present state and valuable instructions for using graphing calculators for easy computing. The nonthreatening framework for measuring and interpreting assessment results is a must for your professional development library.

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