This is the second in a Times series examining the effectiveness of teachers and schools in the Los Angeles Unified School District using a statistical analysis of students’ California Standards Test ...

Includes updates and/or revisions. As value-added research designs gain in popularity and undergo increasing scrutiny, experts are beginning to wave cautionary flags about how best to make use of them ...

For The Record Los Angeles Times Tuesday, October 20, 2009 Home Edition Main News Part A Page 4 National Desk 1 inches; 37 words Type of Material: Correction Teacher evaluations: An article in some ...

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