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Darling-Hammond, Linda; Wei, Ruth Chung; Andree, Alethea; Richardson, Nikole; Orphanos, Stelios – Journal of Staff Development, 2009
This article highlights several key findings from the research project sponsored by the National Staff Development Council. Data and findings drawn from this study will be used to establish benchmarks for assessing progress in professional development over time. Taken as a whole, this work will provide the most comprehensive picture and…
Descriptors: Professional Development, Benchmarking, Educational Principles, Program Effectiveness