Overcoming Bias : Hard Facts: Teaching

More wisdom from Hard Facts:

Merit pay for teachers is an idea that is almost 100 years old ahd has been subject to much research.  In one study conducted in 1918, “48 percent of U.S. school districts sampled used compensation systerms that they called merit pay.” … The evidence shows that merit-pay plans seldom last longer than five years and that merit pay consistently failes to improve student performance.  … [Researchers] also showed that cheating [by teachers] was quite sensitive to the size of the incentives provided for enhancing student scores.  … The same problems emerged when merit-pay systems were implemented in the 1980s. … “It is like policy makers suffer from amnesia.” (pp.22-24) …

The evidence strongly suggests that students learn better when they are not graded and certainly not when they are graded on a curve.  … When drill instructors were tricked into believing that certain randomly selected soldiers would achieve superior performance, those soldiers subsequently performacned far better on tasks like firing weapons and reading maps.  (p.38)

Ending social promotion harms students and schools, and the strongest negative effects are found in the best, most rigorous studies.  At least 55 studies show that when flunked students are compared to socially promoted students, flunked students perform worse and drop out of school at higher rates.  One of the most careful studies found that, after controlling for numberous alternative explanations indlucing race, gender, family income, and school characteristics, students held back one grade were 70 percent more likely to drop out of high school.  (p.51)

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Hard facts indeed.

check me out at posterous here.

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