SAGE Reference - The SAGE Encyclopedia of Social Science Research Methods

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Internal Validity

In: The SAGE Encyclopedia of Social Science Research Methods
Edited by: Michael S. Lewis-Beck, Alan Bryman & Tim Futing Liao
Subject:Research Methods
Keywords:causal inference; internal validity

Internal validity refers to the confidence with which researchers can make causal inferences from the results of a particular empirical study. In their influential paper on “Experimental and Quasi-Experimental Designs for Research,” Campbell and Stanley ...

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  Lewis-Beck, M. S., Bryman, A., & Liao, T. F. (2004). Internal validity. In The SAGE encyclopedia of social science research methods (Vol. 1, pp. 503-504). SAGE Publications, Inc., https://dx.doi.org/10.4135/9781412950589.n436
  
  Lewis-Beck, Michael S., Alan Bryman, and Tim F. Liao. "Internal Validity." In The SAGE Encyclopedia of Social Science Research Methods, edited by Lewis-Beck, Michael S., Alan Bryman, and Tim F. Liao, 503-4. Thousand Oaks, CA: SAGE Publications, Inc., 2004. https://dx.doi.org/10.4135/9781412950589.n436.
  
  Lewis-Beck, M. S., Bryman, A. and Liao, T. F. 2004. Internal Validity. In: Michael S. Lewis-Beck, Alan Bryman and Tim F. Liao Editors, 2004. The SAGE Encyclopedia of Social Science Research Methods, Thousand Oaks, CA: SAGE Publications, Inc. pp. 503-504 Available at: <https://dx.doi.org/10.4135/9781412950589.n436> [Accessed 8 Aug 2022].
  
  Lewis-Beck, Michael S., et al. "Internal Validity." The SAGE Encyclopedia of Social Science Research Methods. Edited by Vol. 1. Thousand Oaks: SAGE Publications, Inc., 2004, pp. 503-4. SAGE Knowledge. 8 Aug 2022, doi: https://dx.doi.org/10.4135/9781412950589.n436.
  
  Lewis-Beck, Michael S., Alan BrymanTim F. Liao (2004). Internal validity In:Internal validity The SAGE encyclopedia of social science research methods Vol. 1. Thousand Oaks, CA: SAGE Publications, Inc.; 2004:503-504. doi:10.4135/9781412950589.n436
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