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Exploring Quasi-Experiments in Empirical Journal Article Critique

In this lab assignment, students locate and critique an empirical journal article using a quasi-experimental design. The tasks include reviewing variables of interest, participant assignment, threats to internal and external validity, as well as ways to improve research quality. The submission format requires printing slides six to a page and including a copy of the article. Due date: May 16, 2008.

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Exploring Quasi-Experiments in Empirical Journal Article Critique

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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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