Study: Performance of teachers can be tracked over time

5 Mar

Moi wrote in Report: Measuring teacher effectiveness:

Public Impact has a produced a report, Measuring Teacher Effectiveness: A Look “Under the Hood” of Teacher Evaluation in 10 Sites which examines teacher evaluation efforts in three states. So, how is teacher effectiveness measured? Well, kids know good teaching when they see it. Donna Gordon Blankinship of AP reports in the Seattle Times article, How Do You Find An Effective Teacher? Ask A Kid

Adults may be a little surprised by some of the preliminary findings of new research on what makes a great teacher.

How do you find the most effective teachers? Ask your kids. That’s one of four main conclusions of the Bill & Melinda Gates Foundation and its research partners after the first year of its Measures of Effective Teaching Project.

Preliminary results of the study were posted online Friday; a more complete report is expected in April, according to the foundation….

The first four conclusions of the study are as follows:

-The average student knows effective teaching when he or she experiences it.

-In every grade and every subject, a teacher’s past success in raising student achievement on state tests is one of the strongest predictors of his or her ability to do so again.

-The teachers with the highest value-added scores on state tests, which show improvement by individual students during the time they were in their classroom, are also the teachers who do the best job helping their students understand math concepts or demonstrate reading comprehension through writing.

-Valid feedback does not need to come from test scores alone. Other data can give teachers the information they need to improve, including student opinions of how organized and effective a teacher is….

See, Students Know Good Teaching When They Get It, Survey Finds

Sarah D. Sparks reports in the Education Week article, Best and Worst Teachers Can Be Flagged Early, Says Study:

New teachers become much more effective with a few years of classroom experience, but a working paperRequires Adobe Acrobat Reader by a team of researchers suggests the most—and least—effective elementary teachers show their colors at the very start of their careers.

“This is a fundamentally different time period for teachers, when we know they are going through changes,” said lead author Allison Atteberry, a research associate in the Center on Education Policy and Workforce Competitiveness at the University of Virginia in Charlottesville. She discussed preliminary results of the study at a research meeting on K-12 and postsecondary education held by the Washington-based National Center for Analysis of Longitudinal Data in Education Research, known as CALDER, on Feb. 21.

“We know less about how these value-added measures work in the early career,” she added.

The study tracked the individual effectiveness of more than 7,600 incoming New York City teachers in mathematics and English/language arts. Each of the teachers taught 4th or 5th grade from 2000 to 2006.

The researchers analyzed teacher records from the New York city and state education departments, along with data on the teachers’ students, including achievement-test results in math and English/language arts, gender, ethnicity, home language, poverty, special education status, and absences and suspensions.

Predicting Performance

While incoming New York City teachers became more effective at improving their students’ mathematics and English/language arts performance in their first few years on the job, new research finds that they’re often still in the same performance quintile after four or five years. Researchers compared the mean effectiveness in the first two years with effectiveness in later years.

Ms. Atteberry’s co-authors are Susanna Loeb, the director of Stanford University’s Center for Education Policy Analysis, and James H. Wyckoff, an education professor at the University of Virginia. They and Ms. Atteberry are all associated with CALDER.

For the incoming teachers who continued to teach for at least five years, the researchers compared the mean value-added effectiveness at improving student achievement in math and English in their first two years of teaching with their effectiveness for the next three years.

Overall, the teachers improved significantly in their first two years in their value-added score. While more than 36 percent of teachers were rated in the lowest of five levels of effectiveness at the start of their careers, only 12 percent were still rated in that same quintile by their third year of teaching.

Limited Growth?

However, when teachers at each initial level of effectiveness were tracked individually over time, their growth was much less significant. Compared with other teachers who started at the same time they did, teachers in the lowest 20 percent were still likely to be in the lowest 20 percent three to five years later.

“When you look at teachers who in the future are low-performing, very few of those come from the initially highest quintile of performance, and the same is true in the opposite direction,” Ms. Atteberry said. “We see that even more at the high end: Teachers who are initially highest-performing are by far the most likely to be in the highest quintile in the future….”


Do First Impressions Matter? Improvement in Early Career Teacher Effectiveness

Allison Atteberry, Susanna Loeb, and James Wyckoff

CALDER Working Paper No. 90

February 2013


There is increasing agreement among researchers and policymakers that teachers vary widely in their ability to improve student achievement, and the difference between effective and ineffective teachers hassubstantial effects on standardized test outcomes as well as later life outcomes. However, there is notsimilar agreement about how to improve teacher effectiveness. Several research studies confirm that onaverage novice teachers show remarkable improvement in effectiveness over the first five years of their careers. In this paper we employ rich data from New York City to explore the variation among teachers in early career returns to experience. Our goal is to bet ter understand the extent to which measures of teacher effectiveness during the first two years reliably predicts future performance. Our findings suggest that early career returns to experience may provide useful insights regarding future performance and offer opportunities to better understand how to improve teacher effectiveness. We present evidence not only about the predictive power of early value-added scores, but also on the limitations and imprecision of those predictions.

Every population of kids is different and they arrive at school at various points on the ready to learn continuum. Schools and teachers must be accountable, but there should be various measures of judging teacher effectiveness for a particular population of children. Perhaps, more time and effort should be spent in developing a strong principal corps and giving principals the training and assistance in evaluation and mentoring techniques. Really, it comes down to each population of kids should have solutions tailored for their needs. There really should not be a one size approach to education.


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