Los Angeles Teacher Ratings

Different Variables, Different Results

Value-added analysis uses statistics to estimate a teacher’s impact on student learning. But experts are still debating which value-added formula yields the most accurate ratings. To show how different models can produce different results, The Times calculated value-added ratings using four value-added models, represented here by different colored lines on the graph. Each model attempts to control for various factors beyond a teacher’s influence. In general, the results of all four models are very similar, though considerable variation occurs in some individual cases. On the advice of leading experts, The Times has elected to use Model 4, which adjusts for as many variables as was possible, given the information available.

 

Teacher rating page »
Model 1
Model 2
Model 3
Times model

This model controls for each student’s past performance on standardized tests.

This model controls for each student’s past performance on standardized tests and student characteristics such as race, gender, English proficiency and parents’ education.

This model controls for each student’s past performance on standardized tests, student characteristics and “peer effects,” or the collective influence of all the students in the class.

This model controls for each student’s past performance on standardized tests; student characteristics; “peer effects,” or the collective influence of all the students in the class; and the prior performance of the entire class.

Math effectiveness

English effectiveness

Model 1
Model 2
Model 3
Times model

Note: None of the models above controls for special education status, which the district withheld due to privacy concerns. For the same reason, the analysis used grade-level data on student race and ethnicity. A more detailed discussion can be found on p. 14 of the technical report.

Find a Teacher

Search by name
x
Search Results
Or, browse alphabetically
Azadeh J. Aarons

Calvert Street Elementary, 2009

Sheila Abadi

Weigand Avenue Elementary, 2007

Robert P. Abadie

One Hundred Seventh Street Elementary, 2009

Helen B. Abanilla

Main Street Elementary, 2005

Ana L. Abarca

Noble Avenue Elementary, 2010

Arturo G. Abarca

Heliotrope Avenue Elementary, 2010

Mary P. Abarca

Heliotrope Avenue Elementary, 2010

Melissa M. Abarca

Strathern Street Elementary, 2009

Victoria Abarca Vina

Panorama City Elementary, 2010

Cynthia C. Abbas

Micheltorena Street Elementary, 2008

Maria A. Abella

Caroldale Learning Community, 2010

Rowena G. Abellera

Lanai Road Elementary, 2010

David L. Abelson

Lenicia B. Weemes Elementary, 2010

Laura Abergel

Cohasset Elementary, 2006

Shanna C. Abergel

Limerick Avenue Elementary, 2008

Anthony D. Abney

Norwood Street Elementary, 2009

Joseph J. Abney

One Hundred Seventh Street Elementary, 2006

Maria C. Abraham

Hope Elementary, 2006

Sarah C. Abraham

Fourth Street Elementary, 2009

Deborah R. Abram

Justice Street Elementary, 2007