Educational Research and Reviews

  • Abbreviation: Educ. Res. Rev.
  • Language: English
  • ISSN: 1990-3839
  • DOI: 10.5897/ERR
  • Start Year: 2006
  • Published Articles: 2008

Full Length Research Paper

Internal validity: A must in research designs

Cahit KAYA
  • Cahit KAYA
  • University of Wisconsin- Madison, United State
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  •  Received: 02 May 2014
  •  Accepted: 31 December 2014
  •  Published: 23 January 2015

Authors

Cahit KAYA
University of Wisconsin- Madison, United State

Corresponding Author Email: [email protected]



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This article is published under the terms of the Creative Commons Attribution License 4.0

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