Journal Title
Title of Journal: J Pers Eval Educ
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Abbravation: Journal of Personnel Evaluation in Education
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Publisher
Springer Netherlands
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Authors: Robert J Marzano
Publish Date: 2008/03/11
Volume: 20, Issue: 3-4, Pages: 117-128
Abstract
Education has long pursued a knowledge base to guide instructional practices In their 1993 article in Review of Educational Research entitled “Toward a Knowledge Base for School Learning” Wang et al 1993 combined the results of a content analysis of 86 chapters from annual research reviews 44 handbook chapters 20 government and commissioned reports and 11 journal articles to develop a list of specific strategies that have research and theoretical support for their effectiveness That same year Lipsey and Wilson 1993 analyzed the findings from 302 metaanalyses and estimated the overall effect of psychological and educational interventions to be34 in standardized mean difference terms ie 34 of a standard deviation Hattie 1992 analyzed the results from 134 metaanalyses of specific instructional techniques and computed an overall effect size of40 ie4 of a standard deviation for such interventions Most recently Seidel and Shavelson 2007 calculated an average
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