chapter 7 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Chapter 7 PowerPoint Presentation
Download Presentation
Chapter 7

Loading in 2 Seconds...

play fullscreen
1 / 40

Chapter 7 - PowerPoint PPT Presentation


  • 112 Views
  • Uploaded on

Chapter 7. Assessing Studies Based on Multiple Regression. Assessing Studies Based on Multiple Regression (SW Chapter 7). Is there a systematic way to assess regression studies?. A Framework for Assessing Statistical Studies: Internal and External Validity (SW Section 7.1).

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

Chapter 7


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
    Presentation Transcript
    1. Chapter 7 Assessing Studies Based on Multiple Regression

    2. Assessing Studies Based on Multiple Regression (SW Chapter 7)

    3. Is there a systematic way to assess regression studies?

    4. A Framework for Assessing Statistical Studies: Internal and External Validity (SW Section 7.1)

    5. Threats to External Validity of Multiple Regression Studies

    6. Threats to Internal Validity of Multiple Regression Analysis (SW Section 7.2)

    7. 1. Omitted variable bias

    8. Potential solutions to omitted variable bias

    9. 2. Wrong functional form

    10. 3. Errors-in-variables bias

    11. In general, measurement error in a regressor results in “errors-in-variables” bias.

    12. “Errors-in-variables” bias, ctd.

    13. Potential solutions to errors-in-variables bias

    14. 4. Sample selection bias

    15. Example #1: Mutual funds

    16. Sample selection bias induces correlation between a regressor and the error term.

    17. Example #2: returns to education

    18. Potential solutions to sample selection bias

    19. 5. Simultaneous causality bias

    20. Simultaneous causality bias in equations

    21. Potential solutions to simultaneous causality bias

    22. Internal and External Validity When the Regression is Used for Forecasting (SW Section 7.3)

    23. Applying External and Internal Validity: Test Scores and Class Size(SW Section 7.4)

    24. Check of external validity

    25. The Massachusetts data: summary statistics

    26. Predicted effects for a class size reduction of 2

    27. Summary of Findings for Massachusetts

    28. Comparison of estimated class size effects: CA vs. MA

    29. Summary: Comparison of California and Massachusetts Regression Analyses

    30. Step back: what are the remaining threats to internal validity in the test score/class size example?

    31. Omitted variable bias, ctd.

    32. Additional example for class discussion

    33. America’s Most Wanted: Threats to Internal and External Validity