The Big Picture
- The information the public needs to have about its schools is far broader and more complex than any set of test scores. Policies are about evaluation not about accountability. This book is devoted to demonstrating the shortcomings of the measuring stick of standardized testing. In order for a test to provide accurate evidence to judge the caliber of instruction, it must be able to distinguish between students who have been well taught and students who have not. Suitable tests must be instructionally sensitive. Tests being used are not. They rely on items closely linked to socioeconomic status and inherited aptitudes to spread out the scores. As such they tend to measure what students bring to school, rather than what they are taught once they get there.
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