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Exploring Quasi-experiments Lab Assignment #5 Due May 16, 2008

Exploring Quasi-experiments Lab Assignment #5 Due May 16, 2008. Locate an empirical journal article that employs a quasi-experimental design. Closely critique the article by completing the following slides. You should hand in your responses by printing the slides six to a page.

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Exploring Quasi-experiments Lab Assignment #5 Due May 16, 2008

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  1. Exploring Quasi-experimentsLab Assignment #5Due May 16, 2008 Locate an empirical journal article that employs a quasi-experimental design. Closely critique the article by completing the following slides. You should hand in your responses by printing the slides six to a page. Be sure to include a copy of the article with your assignment.

  2. Purpose of Research

  3. Variables of interest • The Independent Variables (causes) • The Dependent Variables (outcomes) • The Covariates

  4. Participant assignment

  5. Cook and Campbell’s UTOS • Units: • Treatment: • Observations: • Setting:

  6. Threats to Internal ValiditySpecific to Quasi-experiments • History: • Maturation: • Instrumentation: • Statistical Regression:

  7. AdditionalThreats to Internal Validity

  8. Threats to Construct Validity

  9. Threats to External Validity

  10. Threats to Statistical Conclusion Validity

  11. Improving the research

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