1. Lecture 13: Chapter 11 David Wallace Croft http://www.CroftSoft.com/people/david/ Statistics for Psychology 2005 Jun 24 Fri Copyright 2005 David Wallace Croft This work is licensed under the Creative Commons Attribution License 2.0. http://creativecommons.org/licenses/by/2.0/

2. Quiz Please mute your mobile phones Write your name on a blank piece of paper Quiz will begin at 09:00 When done, turn your paper over At 09:02, I will say, “Pens down” Writing after “Pens down” is cheating Pass your quizzes to your left

3. Outline Administrative Chapter 11 Slides Emphasis Homework Review Assignment Exam 4 Review Overall Course Grades Exam 5 Prep Questions

4. Administrative Journal paper in “Course Documents” area of Blackboard –de Catanzaro and Taylor, “The scaling of dispersion and correlation: A comparison of least-squares and absolute-deviation statistics”, British Journal of Mathematical and Statistical Psychology (1996), 49, 171-188. Homework Review replacing Example as part of lecture

5. Chapter 11 Introduction to the Analysis of Variance Aron and Aron, “Statistics for Psychology”, 3 rd Ed., 2003.

6. Emphasis Null Hypothesis assumption Analysis of Variance (vs. Means) Comparison to t test Bonferroni correction Meaning of F test and controversy

7. Homework Review Chapter 11, Set I, Problem 3, p410

8. Assignment Monday Exam will cover Chapters 10 and 11 No calculators, closed book/closed notes Wednesday Read Chapter 12 before class Homework: Set I, Problem ? Quiz at start of class

9. Exam 4 Review Check that grade correct (0.2 points each) Minimum Meaningful Difference Class Average5.86 Standard Deviation1.7 High Score9.4 Low Score2.8 Frequency Histogram

11. Overall Course Grades Mean33.2 Standard Deviation6.3 Minimum23.5 Maximum46.2 Total Possible51 Median31.9 Skewness0.35 Count35

13. Exam 5 Prep Do homework! Know theory (vs. plug-and-chug) Know glossary terms Robustness assumption

14. Questions Don’t pack up to leave just yet Questions about lecture before we dismiss? Post additional questions to discussion electronic mailing list unless personal –http://egroups.com/group/utd-statistics