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Student scores may be used in LAUSD teacher ratings

Union leaders and LAUSD officials agree to make testing data part of evaluations. But some hurdles remain.

November 30, 2012|By Teresa Watanabe and Howard Blume, Los Angeles Times
  • Los Angeles Unified schools Supt. John Deasy, who has fought to use student test scores in teacher performance reviews since taking the district's helm nearly two years ago, said: "It is crystal clear that what we're doing is historic and very positive."
Los Angeles Unified schools Supt. John Deasy, who has fought to use student… (Irfan Khan / Los Angeles…)

After months of tense negotiations, leaders of the Los Angeles Unified School District and its teachers union have tentatively agreed to use student test scores to evaluate instructors for the first time, officials announced Friday.

Under the breakthrough agreement, the nation's second-largest school district would join Chicago and a growing number of other cities in using test scores as one measure of how much teachers help their students progress academically in a year.

Alarm over low student performance, especially in impoverished and minority communities, has prompted the Obama administration and others to press school districts nationwide to craft better ways to identify struggling teachers for improvement.

The Los Angeles pact proposes to do that using a unique mix of individual and schoolwide testing data — including state standardized test scores, high school exit exams and district assessments, along with rates of attendance, graduation and suspensions.

But the tentative agreement leaves unanswered the most controversial question: how much to count student test scores in measuring teacher effectiveness. The school district and the union agreed only that the test scores would not be "sole, primary or controlling factors" in a teacher's final evaluation.

"It is crystal clear that what we're doing is historic and very positive," said L.A. Supt. John Deasy, who has fought to use student test scores in teacher performance reviews since taking the district's helm nearly two years ago. "This will help develop the skills of the teaching profession and hold us accountable for student achievement."

Members of United Teachers Los Angeles, however, still need to ratify the agreement. Many teachers have long opposed using test scores in their evaluations, saying test scores are unreliable measures of teacher ability.

The union characterized the agreement as a "limited" response to a Dec. 4 court-ordered deadline to show that test scores are being used in evaluations and said negotiations were continuing for future academic years. The deadline was imposed by Los Angeles County Superior Court Judge James C. Chalfant, who ruled this year that state law requires L.A. Unified to use test scores in teacher performance reviews.

In a statement, the teachers union also emphasized that the agreement rejected the use of the district's method of measuring student academic progress for individual instructors. That measure, called Academic Growth Over Time, uses a mathematical formula to estimate how much a teacher helps students' performance, based on state test scores and controlling for such outside factors as income and race. Under the agreement, however, schoolwide scores using this method, also known as a value-added system, will be used.

For individual teachers, the agreement proposes to use raw state standardized test score data. Warren Fletcher, teachers union president, said that data give teachers more useful information about student performance on specific skills.

Critics of using test scores in teacher reviews praised Los Angeles' proposed new system, saying it uses a wide array of data to determine a teacher's effect on student learning.

Deasy said he will be developing guidelines for administrators on how to use the mix of data in teacher reviews and has said in the past that test scores should not count for more than 25% of the final rating.

"This is a complex agreement and possibly the most sophisticated evaluation agreement that I have seen," said Diane Ravitch, an educational historian and vocal critic of the use of test scores in teacher evaluations. "It assures that test scores will not be overused, will not be assigned an arbitrary and inappropriate weight, will not be the sole or primary determinant of a teacher's evaluation."

Teacher Brent Smiley at Lawrence Middle School in Chatsworth said: "I will vote yes. I have no doubt that my union leaders negotiated the best they could, given the adverse set of circumstances they faced."

Labor-relations expert Charles Kerchner called the agreement "a shotgun wedding," but added, "I think it's unabashed good news."

He said it's notable that value-added measures and test scores have been accepted in some form by the teachers union.

"UTLA has moved beyond a strategy of just saying no to a strategy of trying to craft a useful agreement," said Kerchner, a professor at Claremont Graduate University.

The district is currently developing a new evaluation system that uses Academic Growth Over Time — along with a more rigorous classroom observation process, student and parent feedback and a teacher's contributions to the school community. The new observations were tested last year on a voluntary basis with about 450 teachers and 320 administrators; this year, every principal and one volunteer teacher at each of the district's 1,200 schools are expected to be trained.

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