1. Lecture 8: Chapter 6 David Wallace Croft http://www.CroftSoft.com/people/david/ Statistics for Psychology 2005 Jun 08 Wed 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 6 Slides Emphasis Homework Grading Theory Exam 2 Review Next Class Questions

4. Administrative All grades in Blackboard now –http://blackboard.utdallas.edu/ Research credits

5. Chapter 6 Introduction to Hypothesis Testing Aron and Aron, “Statistics for Psychology”, 3 rd Ed., 2003.

6. Emphasis Rejecting the null hypothesis –Magic word and coin flip example One-tailed or two-tailed?

7. Homework Chapter 6 Set 1, Problem 4 Do the rest

8. Grading Theory Learning –Repeated exposure –Spaced intervals First introduction –Entire book –A-/B+ split at mean –Follow-on course

9. Exam 2 Review High Score9.4 Low Score4.2 Mean6.3 Standard Deviation1.6 Median6.2 Skewed to the right Course Mean17.8 Course Standard Deviation3.4

11. Next Class Friday Read Chapter 7 before class Quiz at start of class Monday Exam will cover Chapters 6 and 7 No calculators

12. 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