Chapter 12: Research Design Explained

1. You are now at the Chapter 12 section of the text's student Web site. Here you can
   1. Look over the concept map of the key terms and look at a glossary of the key terms.
   2. Test yourself on the chapter objectives.
   3. Test yourself on the key terms.
      • Quick matching test
      • Download more extensive vocabulary tests (Windows program)

   4. Take the Practice Quiz (a short, general quiz over the entire chapter).
      • Take 10-item quizzes over the first part of the chapter.
        • Quiz A
        • Quiz B
      • Take 9-item quizzes over the second part of the chapter.
        • Quiz A
        • Quiz B
      • Take 6-item quizzes over the third part of the chapter.
        • Quiz A
        • Quiz B
      • Take 7-item quizzes over the fourth part of the chapter.
        • Quiz A
        • Quiz B
   5. Review by looking at the key issues and reading the chapter summary.
2. Download either the Windows version or the Macintosh version of the Chapter 12 tutorial to practice
   1. Interpreting ANOVA tables and
   2. Interpreting graphs of the results of factorial experiments.
3. Do an ANOVA using a statistical calculator.
4. Get a better idea of the steps involved in conducting a study by reading "Web Appendix: Conducting a Study."
5. Get a more in-depth understanding of interactions (especially ordinal and disordinal ones) by reading this Web Appendix.
6. Practice making predictions--and see how those predictions are translated into main effects and interactions--in a study in which the reliability of the witness and the confidence of the witness is varied to see how those variables affect how likely participants are to convict a defendant based on that testimony. You can use whatever dependent measure you want. For example, you could use years sentenced to jail, certainty on a 1 (not at all certain) to 7 (absolutely certain) scale. The point is to make predictions--and then see whether you can (a) graph those predictions and (b) state those predictions in terms of main effects and interactions. At first, just make a variety of predictions; just play around an enter a variety of numbers. After a few trials, see if you can anticipate (a) what the computer's graph of your data will look like and (b) what main effects and interactions you have predicted. Get started by clicking here.
   • If you want to make predictions regarding your own 2 X 2 design, click here.

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