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Teachers' data reports place them in one of five categories depending on how much they were able to boost their students' test scores over the course of several years.

Reports ranking teachers on how much they were able to increase students’ test scores from one year to the next arrived in principal’s inboxes this week, and this time Department of Education officials say the reports are simpler and fairer than in years past.

First released in 2008, teacher data reports have rankled teachers who object to being judged solely on test scores and confused principals, some of whom found the reports too complicated to use. The reports released this week cover 12,000 teachers and address some of those concerns. They contain less information, are easier to read, and use a new formula to calculate teachers’ value-added scores.

This year, Chancellor Joel Klein has made it clear what should be done with the data: one in ten teachers who are up for tenure will have their reports used as a criteria in their tenure evaluations.

On Tuesday morning, principals with students in grades 3-8 — the state gives yearly math and English tests to these students — were given school summary reports. Teachers won’t receive their individual data reports until next week. The vast majority work in traditional public schools, as less than a dozen charter schools chose to participate, according to the Department of Education’s chief talent officer, Amy McIntosh. (more…)

Last year, Teachers College sociologist Aaron Pallas concluded that the city’s progress report formula generated results that were wildly inconsistent from year to year, to the point of statistical meaninglessness. Now a regular contributor to the GothamSchools community section, Pallas analyzed this year’s reports and found that nothing has changed.

Providing the scatter plot at the right, which compares the percentage of students at each school making a year of progress in reading from one year to the next, Pallas writes:

 The correlation between student progress from 2007 to 2008 and student progress from 2008 to 2009 is -.02, which is indistinguishable from zero.  This means that there really is no pattern to the results, and certainly not a pattern that demonstrates consistency or stability from one year to the next.

Read Pallas’s complete analysis of this year’s reports here.

Nearly two thirds of principals say the Department of Education’s $81 million online data warehouse could help improve teaching and learning at their schools. 

The finding is among the results of a survey conducted by Public Advocate Betsy Gotbaum’s office, which released a statement today emphasizing that more than a third of principals did not think the system was helping their schools. In its coverage of Gotbaum’s report, the New York Times billed the system as being “supported by most principals,” And the city has said that its internal survey results show that most principals see benefits to the system.

ARIS’s solid approval rating doesn’t mean all of its kinks have been worked out. The Manhattan School for Children’s parent coordinator sent the following e-mail to parents last week:

ARIS and Classroom Assignments
It has come to my attention that the classroom teacher assignments have been posted on ARIS and I have been trying to unravel the mystery as to how these assignments came to be posted. I have also discovered that there are many mistakes. The official letters from MSC will be sent at the end of August. I am also out of town and cannot access the ID numbers that many parents are now requesting. Please double check the letters that you received from your classroom teacher. Both numbers were given out at the same time. Again, you will be notified about your official class by mail. Please do not rely on the ARIS site for this information.

The parent who forwarded me the e-mail said the incorrect information has been removed from the system but new information hasn’t yet been uploaded. (The system opened to parents in May.) (more…)