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Teachers to Be Measured Based on Students’ Standardized Test Scores

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The new reports are part of a broader bid by the city to improve the ways teachers are recruited, trained and measured. Last year, the Education Department began a push to get rid of subpar teachers before they earned tenure, forming a team of lawyers and consultants to help principals amass enough information to oust those who are deemed deficient and do not show signs of improvement.

There have been similar efforts across the country, as politicians and academic experts say that teachers are the most important element in improving student performance and closing the gap in achievement between white and minority students. School systems in Texas and Tennessee, for example, have used student performance and improvement as a tool to evaluate teachers.

New York City plans to generate reports for roughly 18,000 teachers — every math and English teacher in fourth through eighth grades.

Amy McIntosh, the Education Department’s chief talent officer, who helped develop the system, said that her team would continue to explore ways to monitor the effectiveness of the city’s nearly 60,000 other public school teachers, but that for now the state tests were the only data on which to reliably base evaluations of them.

The teacher data report balances the progress students make on state tests and their absences with factors that include whether they receive special-education services or qualify for free lunch, as well as the size, race and gender breakdown of the teacher’s class.

Using a complicated statistical formula, the report computes a “predicted gain” for each teacher’s class, then compares it to the students’ actual improvements on the test. The result is a snapshot analysis of how much the teacher contributed to student growth.

The reports classify each teacher as average, above average or below average in effectiveness with different categories of students, like those who score in the top third or the lowest third on the test, and those still learning English or enrolled in special-education programs. It also contains separate measurements on effectiveness in teaching boys and girls, though it does not distinguish performance by students’ race or income level. Teachers will also be given a percentile ranking indicating how their performance compares to those who teach similar students and to a citywide pool.

“When we have talked to teachers about this, there is real insight about the students,” Ms. McIntosh said. “They will say, ‘I didn’t realize I was teaching to the bottom,’ or, ‘I am really great with boys, and less so with girls.’ ”

Last year’s pilot program also attempted to measure how well a principal’s perception of teachers aligned with the student test score data. According to the Education Department, about 69 percent of the teachers whom principals rated “exceptional” were in the top half on the reports. And 73 percent of those whom principals called “fair, poor or very poor” were in the bottom half.

Frank Cimino, the principal of Public School 193 in Brooklyn, which participated in the pilot program, said he was still uncertain about how useful the reports were.

“I would like to make a comparison to see what it shows this year to what it showed last year,” he said. “I don’t think anything can replace getting into the classroom.”

Copyright 2008 The New York Times Company