Unobtrusive measures ; nonreactive research in the social sciences [by] Eugene J. Webb [and others].

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  • Unobtrusive measures ; nonreactive research in the social sciences [by] Eugene J. Webb [and others]. Book Detail

  • Author : Eugene J. Webb
  • Release Date : 1966
  • Publisher :
  • Genre :
  • Pages : 0
  • ISBN 13 :
  • File Size : 17,17 MB
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Unobtrusive measures ; nonreactive research in the social sciences [by] Eugene J. Webb [and others]. by Eugene J. Webb PDF Summary

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Unobtrusive Measures

Unobtrusive Measures

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Thirty-five years ago, the four authors of this book addressed the problem of validity in social science research. This revised edition builds on the earlier ve