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Keaton, Patrick; Sable, Jennifer; Liu, Fei – National Center for Education Statistics, 2012
This revised data file includes corrections that were provided to NCES as a result of a special collection effort designed to address data quality issues found in the 1a release of this file. In May 2012, NCES became aware of data errors for key data items for several schools on the published version of the SY 2009-10 school file; in some cases…
Descriptors: School Statistics, Data Collection, Documentation, Error Patterns
Bosker, Roel J.; Witziers, Bob – 1995
School-effectiveness research has not yet been able to identify the factors of effective and noneffective schools, the real contribution of the significant factors, the true sizes of school effects, and the generalizability of school-effectiveness results. This paper presents findings of a meta analysis, the Dutch PSO programme, that was used to…
Descriptors: Academic Achievement, Effect Size, Effective Schools Research, Elementary Secondary Education