January 8 | Los Angeles Times

By Teresa Watanabe

Student standardized test scores can accurately identify effective teachers, along with other performance measures such as classroom observations and pupil surveys, according to a major national study released Tuesday.

The study of 3,000 teachers in seven school districts by the Bill & Melinda Gates Foundation found that the controversial method of measuring student academic growth, known as value-added, was a valid indicator of how well teachers helped boost their students’ achievement over time.

As school districts across the country move to improve what is commonly viewed as ineffective teacher evaluation systems, the Gates study may accelerate the use of value-added, along with other measures of teacher performance.

Learn more about the study here.

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