Are you properly evaluating the results of the tests you give to students? Can you explain the difference between classroom assessment and standardized 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. This nonthreatening framework for measuring and interpreting assessment results is a must-have for your professional development library.