Primary, Secondary, and Meta-Analysis of Research1

@article{Glass1976PrimarySA,
  title={Primary, Secondary, and Meta-Analysis of Research1},
  author={Gene V. Glass},
  journal={Educational Researcher},
  year={1976},
  volume={5},
  pages={3 - 8}
}
  • G. Glass
  • Published 1 November 1976
  • Education
  • Educational Researcher
M y subject is data analysis at three levels. Primary analysis is the original analysis of data in a research study. It is what one typically imagines as the application of statistical methods. Secondary analysis is the re-analysis of data for the purpose of answering the original research question with better statistical techniques, or answering new questions with old data. Secondary analysis is an important feature of the research and evaluation enterprise. Tom Cook (1974) at Northwestern… 

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