Psychology 317-318 for 2010: Final Update

Tuesday, June 8, 2010 8:30 PM

 

Final Grade statistics: M = 3.21; Md = 3.65; SD = 1.02; Max = 4.0; Min = 0.7

Final Exam statistics: M = 80; Md = 82; SD = 17; Max = 100; Min = 23

Final Exam answers may be picked up here.

 

Have a great summer!

 

Information below this line is out of date and is preserved for historical purposes only.


Exam 5 statistics: M = 87; Md = 93; SD = 14; Max = 97; Min = 32

Final Exam

· The Final Exam will occur tomorrow, Tuesday, 6/8/2010 from 8:30 - 10:30. It will cover all lectures given in the course. It will cover textbook Chapters 10-16, along with the Loftus article that is still downloadable from here.

Exam-5 answers may be picked up here.

The Homework #5 answer sheet may be picked up here.

Exam #5

· Exam #5 will occur Wednesday, 6/2/2010 from 8:30 - 10:30. It will cover the lectures given on 5/17, 5/24, and 5/26. It will cover textbook Chapter 14 from p. 460 through the end of the chapter, Chapter 15, and Chapter 16. You won't be responsible for anything in the Loftus article for Exam 5; however, nothing in that article should be particularly unfamiliar to you, and I will hold you responsible for its general ideas for the Final Exam.

Final HW

· Because of this year's schedule, there won't be any lecture next week, so there's no final HW.

"Reflections"

· A month or so ago, I was asked to write some "personal reflections" about statistics by a author in England for a textbook that she's publishing. I thought you might be interested in what I wrote, which can be downloaded from here.

Final version of HW#5: Due Thursday, 5/27/2010 at 12:30 PM (NOTE: No problems have been dropped).

· Additional correlation problems which may be picked up here.

· Chapter 15: 1, 3, 11, 13b-c, 14, 16, 22 (problem 8 only), 23 (problem 1 only), 24 (problem 1 only), 25 (problem 1 only)

· Chapter 16: 1, 7, 8, 9

Exam 4, Problem-1 issue

· I made a mis-computation on Exam-4, Problem 1. The two assumed sums of squared values provided on p. 3 should have been: 984,225 for Sum (xijk2) and 4,916,125 for Sum (Tjk2). The two values that were actually on Exam 4 wreaked havoc for anyone trying to compute sum of squares from the actual column totals.

· For this, we apologize, and everyone will receive full credit (50 points) for Problem 1. Please make sure you give your exam to your TA for a re-grading if you haven't done so already.

Readings for Wednesday, 5/26/10 lecture

· Chapter 15, pp. 494 - end of chapter.

· Chapter 16.

Exam 4 statistics: M = 76; Md = 77; SD = 16; Max = 100; Min = 31

· NOTE: There was a problem with Exam 4, Problem 1. We will do something about it to eliminate unfairness, but we haven't yet figured out quite what.

Readings for Monday, 5/24/10 lecture

· Chapter 1

· Loftus article which can be picked up from here.

Exam-4 answers may be picked up here. NOTE: The link is now fixed.

Exam #4

· Exam #4 will occur Wednesday, 5/19/2010 from 8:30 - 10:30. It will cover the lectures given on 5/3, 5/10, and 5/12. It will cover textbook Chapter 13 from p. 413 through the end of the chapter and Chapter 14 through p. 460.

The Homework #4 answer sheet may be picked up here.

Pick up "VarianceDemo.xls" spreadsheet from here. We will go over this spreadsheet as part of Wednesday's lecture. (NOTE: New version posted as of 7:00 AM on 5/12).

· There are two worksheets: "Subjects as Random Effect" and "Subjects as Fixed Effect." For either sheet...

· You can play with the spreadsheet by entering values for the various s's in the white section near the upper left.

· Green sections generally refer to the underlying mathematical model that is used to generate data

· Purple and blue sections are data: purple for the raw data and blue sections for various totals.

· Dark gray section at the lower left is for the ANOVA.

Readings for Monday, 5/17/10 lecture

· Play with the downloaded spreadsheet.

· Chapter 14: p. 461 through the end of the chapter.

· Chapter 15 through p. 479

Final version of HW#4: Due Thursday, 5/13/2010 at 12:30 PM.

· Chapter 13: 11, 12

· Chapter 14: 1, 2, 3, 7a. For problems 2 and 3, compute 95% confidence intervals around the Pearson r and the Pearson r-squared. NOTE: As indicated in the errata sheet, the book section on confidence intervals around Pearson r's (p. 460) is wrong and you should cross it out. I'll go over the correct method in class before the relevant HW problems are due. You should also download a handout about the correct method from here.

HW#4: Due Thursday, 5/13/2010 at 12:30 PM.

· Chapter 13: 11, 12

· Chapter 14: 1, 2, 3, 7. For problems 2 and 3, compute 95% confidence intervals around the Pearson r and the Pearson r-squared. NOTE: As indicated in the errata sheet, the book section on confidence intervals around Pearson r's (p. 460) is wrong and you should cross it out. I'll go over the correct method in class before the relevant HW problems are due. You should also download a handout about the correct method from here.

Readings for Wednesday, 5/12/10 lecture

· Review Text Chapter 14 section on Expected Mean Squares

· Text Chapter 14. NOTE: Please remember from your errata sheet to cross out the textbook section on p. 460 on confidence intervals. That information is incorrect, and the correct method is provided on a handout here.

Exam 2 Statistics: Mean = 72; Median = 71; SD = 28, Maximum = 99; Minimum = 0

Alec will be out of town and will not hold office hours tomorrow.

Readings for Monday, 5/10/10 lecture

· Text Chapter 13, particularly pp. 418 through the end of the chapter.

· Text Chapter 14, through p. 452. NOTE: Although it probably won't be relevant to Monday's lecture, please remember from your errata sheet to cross out the textbook section on p. 460 on confidence intervals. That information is incorrect, and the correct method is provided on a handout here.

Exam-3 Answers may be picked up here.

Leanne's office hours today.

· Leanne is in the ER with a back issue, so she won't be able to hold her 12:00 - 1:30 office hours today. We will try to find someone to fill in.

Exam #3

· Exam #3 will occur Wednesday, 5/5/2010 from 8:30 - 10:30. It will cover the lectures given on 4/19, 4/26, and 4/28. It will cover textbook Chapter 12 and Chapter 13 through p. 412.

Readings for Monday, 5/3/10 lecture

· Text Chapter 13, particularly pp. 413 through the end of the chapter.

The Homework #3 answer sheet may be picked up here.

Final version of HW#3: Due Thursday, 4/29/2010 at 12:30 PM.

· Chapter 12: 1c-f, 2b, 8acd, 9, 10, 11

· Chapter 13: Chapter 13: 1, 4, 9 (NOTE: for Part e, the deviations should be: subj 1 add 1.0; subj 2 add 2.0; subj 3 leave alone; subj 4 subtract 3.0). NOTE: When asked for confidence intervals, plot the "within-subjects" confidence intervals described in class today. You should, however, know how to do the "real" confidence intervals that were also discussed in class.

HW#3: Due Thursday, 4/29/2010 at 12:30 PM.

· Chapter 12: 1c-f, 2b, 8acd, 9, 10, 11

· Chapter 13: Chapter 13: 1, 4, 5, 9 (NOTE: for Part e, the deviations should be: subj 1 add 1.0; subj 2 add 2.0; subj 3 leave alone; subj 4 subtract 3.0), 11, 12

Readings for Wednesday, 4/28 lecture

· Text Chapter 13

Undergraduate TA positions for 2011

I can take a maximum of 4 people as undergraduate TAs for this class next year.

If you will be here for both Winter and Spring quarters of 2011, and you are interested in being an undergraduate TA for this class, please come by and see me. Feel free to call or email me to set up an appointment.

Important things to know are these.

· Class times and the class structure will be the same next year as it is this year.

· Skills for being an undergraduate TA include both understanding the class materials and being able to explain them to others.

· Undergraduate TAs are expected to attend all class lectures, hold their own section, hold 3 hours a week of office hours, grade their section's homework, and help grade exams.

· Although it's a lot of work, being an undergraduate TA has a number of advantages: you learn the materials much better, you develop skill as an instructor, you develop a nice relationship with your fellow TA's and you get a letter of recommendation from me which is useful for your future. (Plus, at the end of the year, I take everyone out for a celebratory TA dinner).

· Class credit (I believe Psych 497) is available for being an undergraduate TA.

· Please talk to any of the current TAs to get the best sense of what the job is like.

Office Hours changes

· Leanna's office hours are now: M 2:30-4:00, Tu 12:00 - 1:30

· Jianli's office hours are now: M, Th 10:30-12:00

· Chris's office hours are now: M, W 11:30 - 1:00

· Alec's office hours are now: Tu, Th, 9:00 - 10:30

Exam 2 Statistics: Mean = 90; Median = 93; SD = 11, Maximum = 100; Minimum = 45

Exam-2 Answers may be picked up here. NOTE: The actual exam answers are provided in the worksheet titled "Exam 2 actual". For those of you who may be interested, the worksheet titled, "Exam 2 DG" provides an illustration of how I generate hypothetical data for exams.

Readings for Monday, 4/26 lecture

· Text Chapter 12, pp. 371 - end of chapter

· Text Chapter 13, pp. 403-411

Exam #2

· Exam #2 will occur tomorrow, Wednesday, 4/21/2010 from 8:30 - 10:30. It will cover the lectures given 4/5, 4/12, and 4/14. It will cover textbook Chapter 11 and Chapter 12 through p. 363.

The Homework #2 answer sheet may be picked up here.

Readings for Monday, 4/19 lecture

· Text Chapter 12.

HW#2 Final version: Due Thursday, 4/15/2010 at 12:50 PM.

· Chapter 11: 1, 3, 4, 5, 6, 8

· Chapter 12: 1a-b, 2a, 8b. NOTE: for all these problems, you can treat the design as if it were a one-way ANOVA design with JxK conditions.

Readings for Wednesday, 4/14 lecture

· Text Chapters 11-12.

Please download this spreadsheet on homogeneity of variance. Print out the "HOV example" worksheet and bring it with you to class on Wednesday, 4/14.

HW#2: Due Thursday, 4/15/2009 at 12:30 PM.

· Chapter 11: 1, 3, 4, 5, 6, 8

· Chapter 12: 1, 2, 8, 9, 10, 11

Exam 1 Statistics: Mean = 82; Median = 86; SD = 19, Maximum = 100; Minimum = 23

Readings for Wednesday, 4/14 lecture

· Text Chapter 12.

Exam-1 Answers may be picked up here. NOTE: The actual exam answers are provided in the worksheet titled "Exam 1 actual". For those of you who may be interested, the worksheet titled, "Exam 1 DG" provides an illustration of how I generate hypothetical data for exams.

Exam #1

· Exam #1 will occur on Wednesday, 4/7/2010 from 8:30 - 10:30. It will cover the lectures given 3/29 and 3/31 (but not the lecture that will be given on 4/5). It will cover textbook Chapter 10.

Readings for Monday, 4/5 lecture

· Text Chapter 11.

The Homework #5 answer sheet may be picked up here. (Sorry for the delay in getting this up; it's the first time since Wednesday that I've had internet access).

Some somewhat random but important facts

· The criterion t's that you get may differ from the HW answers if you got your answers electronically and the HW answers were gotten from the book's tables, or vice-versa

· The final exam for this course will be cumulative only for P318, i.e., it will not cover P317.

Section Assignments

· In order to equalize the number of people in each section, we will, as we did last quarter, assign you to sections. Please ignore the section that the UW computer assigned you to, and get your section assignment from here.

· If at all possible, please remain in the section to which you were assigned. If it is impossible for you to attend your assigned section, please email me, and I will change you.

Please download these documents if you haven't already done so.

· Psychology 318 Class syllabus

· Psychology 318 Handout packet.

· Psychology 317-318 Textbook errata sheet. Those of you who were in P317 last quarter should have downloaded this already.

Practice Exams: You may download Psychology 318 exams (in Word format) along with answer sheets (in Excel format) from 2006 and 2008. It's useful to do these for practice.

Spring Quarter Schedule

· You can view the Spring quarter class schedule at a glance here. Note that it's page 3 of the class syllabus. Bookmarking it may be useful.

Final version of Homework #1: Due Thursday, 4/1/2009 at 12:30 PM. NOTE: No questions have been dropped.

· Chapter 10 (NOTE: in all problems where you are comparing two means, compute the 95% confidence interval around the mean difference): 1, 4, 6, 8, 13, 14, 16

Psychology 318 Homework #1: Due Thursday, 4/1/2009 at 12:30 PM. NOTE: Depending on how much material I get through on Wednesday 1/6/09, some of these problems may be dropped from HW #1, and will show up on HW #2.

· Chapter 10 (NOTE: in all problems where you are comparing two means, compute the 95% confidence interval around the mean difference): 1, 4, 6, 8, 13, 14, 16

Readings for Wednesday, 3/31 lecture

· Continue on text, Chapter 10.

Readings for Monday, 3/29 lecture

· Text, Chapter 10.

Have a good break! On Monday, 1/20/10, we will pick up exactly where we left off. Please check this web site prior to class for important information.

Final grade sheet may be picked up here.

Final Exam Statistics: Mean = 85; Median = 87; SD = 11, Maximum = 100; Minimum = 47

Final Exam Answers may be picked up here

The Final homework answer sheet may be picked up here.

Final Exam

· The final will occur on Tuesday, 3/16/2010 (not 3/17 as it says on the syllabus) from 8:30 - 10:30. It will cover all the lectures given in the course, ending with the lecture on Monday, 3/8. It will cover all textbook chapters through Chapter 9, as well as Appendixes A-C.

Exam-5 Answers may be picked up here

Final Homework: Due Thursday, 3/11/2010 at 12:30 PM (to be covered on the Final Exam)

· Chapter 9: 2, 3, 4, 6

The Homework #5 answer sheet may be picked up here.

Readings for Monday, 3/8 lecture

· Chapter 9

Exam #5

· Exam #5 will occur on Wednesday, 3/10/2010 from 8:30 - 10:30. It will cover the lectures given 2/22, 3/1, and and 3/3. It will cover textbook Chapter 6, pp. 185-end of the chapter, plus all of Chapters 7 and 8.

Final version of Homework #5: Due Thursday, 3/4/2010 at 12:30 PM (Chapter-9 problems have been dropped; all else remains)

· Chapter 7: 1, 2, 3, 6, 7, 12, 14. Also, compute 95% confidence intervals around the summary score(s) that you use in Problems 3, 6, and 7

· Chapter 8: 2, 5, 10 (Additional work for Question 10: For part a: compute 90% confidence intervals around the Seattle and Portland means and for part c: what would the 90% confidence intervals be around the Seattle and Portland means with the sample sizes that you choose?)

Homework #5: Due Thursday, 3/4/2010 at 12:30 PM

· Chapter 7: 1, 2, 3, 6, 7, 12, 14. Also, compute 95% confidence intervals around the summary score(s) that you use in Problems 3, 6, and 7

· Chapter 8: 2, 5, 10 (Additional work for Question 10: For part a: compute 90% confidence intervals around the Seattle and Portland means and for part c: what would the 90% confidence intervals be around the Seattle and Portland means with the sample sizes that you choose?)

· Chapter 9: 2, 3, 4, 6

Readings for Wednesday, 3/3 lecture

· Chapter 6: pp. 185-193 (one- vs two-tailed tests)

· Chapters 7 pp. 216-221 (sample mean differences as summary scores)

· Chapter 8 through p. 255 (many aspects of power)

· Chapter 8 p. 255-261 (confidence intervals)

 

· NOTE: The order of material is temporarily traveling a somewhat different route for lecture compared to reading. On Monday, 2/22, I went through the basic information on sampling distributions and the distribution of sample means covered in Chapter 7 through p. 210. On Monday, 3/1 and probabably continuing on Wednesday, 3/3, we will return to issues having to do with hypothesis testing that are covered partly in Chapter 6 from p. 185 on, partly in Chapter 7 from p. 211 on, and partly in Chapter 8. When we get to the Chapter-9 materials, the lecture and readings order will re-converge

Exam-4 Statistics: Mean = 81; Median = 82; SD = 11, Maximum = 99.5; Minimum = 51

Exam-4 Answers may be picked up here

Readings for Monday, 2/22 lecture

· Chapter 6: pp. 185-end of chapter

· Chapter 7

· NOTE: The order of material will briefly be a bit different for lecture and reading. Although various issues having to do with hypothesis testing using the normal distribution are covered in Chapter 6 from p. 185 through the end of the chapter, I will not cover that material in lecture until I get through the general topic of sampling distributions (Chapter 7 through p. 213).

Exam #4

· Exam #4 will occur on Wednesday, 2/24/2010 from 8:30 - 10:30. It will cover the lectures given 2/8 and 2/17. It will cover textbook Chapters 5 and Chapter 6 through p. 184.

· NOTE: the only thing not yet covered in lecture is the correction for continuity (textbook pages 180-184). Make sure that you read this section carefully so that you can finish on your own what I began at the end of class today. I will briefly review the correction for continuity at the beginning of class on Monday, 2/22, and you will be responsible for it on Exam 4.

The Homework #4 answer sheet may be picked up here. It's been re-posted as of 2/19/10 to correct a minor error in Problem 1g.Final version of Homework #4: Due Thursday, 2/18/2010 at 12:30 PM

· Chapter 5: 1 (list 5 situations only), 2, 4, 8, 10

· Chapter 6: 1, 4, 5, 9, 11, 15, 16, 21

Homework #4: Due Thursday, 2/18/2010 at 12:30 PM

· Chapter 5: 1 (list 5 situations only), 2, 4, 8, 10

· Chapter 6: 1, 4, 5, 9, 11, 15, 16, 21

· Chapter 7: 1, 2, 3, 6, 7, 12, 14

Exam-3 Statistics: Mean = 89; Median = 93; SD = 11, Maximum = 100; Minimum = 60

Readings for Wednesday, 2/17 lecture (enjoy the holiday on Monday!)

· Chapter 6

Exam-3 Answers may be picked up here

Exam #3

· Exam #3 will occur on Wednesday, 2/10/2010 from 8:30 - 10:30. It will cover the lectures given on 1/25, 2/1, and 2/3. It will cover textbook Chapters 3, 4, and Appendexes A-C.

The new improved Homework #2 answer sheet may be picked up here.

Readings for Monday, 2/8 lecture

· Text: Chapter 5; Chapter 6 through p. 179

The Homework #2 answer sheet may be picked up here. NOTE: Due to an administrative error, this answer sheet is somewhat sketchy. A new, improved one will be posted by Monday, 2/8.

Final Version of Homework #3: Due Thursday, 2/4/2010 at 1:30 PM (NOTE: No problems have been dropped)

· Chapter 3: 1, 2, 7, 8, 94

· Chapter 4: 1, 2, 4, 6, 14, 17, 20, 24

Readings for Wednesday, 2/3 lecture

· Text: Chapter 4

Readings for Monday, 2/1 lecture

· Text: Appendix C, Chapter 4

Exam-2 Statistics: Mean = 89; Median = 92; SD = 13; Maximum = 100; Minimum = 42

Exam-2 Answers may be picked up here

Important note: Please do not turn in homework to Loftus's mailbox. If you do, it will likely not make it to your TA on time. Please turn in homework to the "Psychology 317" mailbox.

· Good luck on tomorrow's exam! I'll be traveling again and will post the exam answers as soon after 10:30 that I can find internet access. It will likely be between noon and 1:00, but may be as late as the evening.

Exam #2

· Exam #1 will occur on Wednesday, 1/27/2010 from 8:30 - 10:30. It will cover the lectures given on 1/11 and 1/20. It will cover the textbook from p. 39 through the end of Chapter 2 (although you will need to understand all the Chapter-1 material to understand everything you need to know for the exam).

The Homework #2 answer sheet may be picked up here.

Readings for Monday, 1/25 lecture

· Text, Chapter 3, Appendixes A and B

Final version of Homework #2: Due Thursday, 1/21/2010 at 12:30 PM

· Chapter 1: 9, 10, 12, 14, 15, 18, 21

· Chapter 2: 1, 3, 4, 8,10, 11, 15

Exam-1 Statistics: Mean = 91; Median = 93; Maximum = 100; Minimum = 58

Exam-1 Answers may be picked up here

Readings for Wednesday, 1/20 lecture

· Text, Chapter 2

Homework #2: Due Thursday, 1/21/2010 at 12:30 PM

· Chapter 1: 9, 10, 12, 14, 15, 18, 21

· Chapter 2: 1, 3, 4, 8,10, 11, 15

· Chapter 3: 1, 2, 7, 8, 9

· Good luck on today's exam! I'm traveling today and will post the exam answers as soon after 10:30 that I can find internet access. It will likely be between noon and 1:00.

I don't know why we keep having trouble with this. The correct answer to HW problem 2b is countably infinite. Sorry for the perseverating problem.

NOTE: If you're having trouble with the practice exam excel files, it may help to note that they're excel workbooks. At the bottom are tabs corresponding to Exam 1, Exam 2, etc. Click the appropriate tab to get the corresponding answer sheet that you want.

NOTE: There were a couple of slight errors in the original Homework #1 answer sheet posting yersterday. The corrected version may be picked up here.

Updated section assignments

· Please go here to get your section assignment.

Practice Exams: You may download exams (in Word format) along with answer sheets (in Excel format) from 2006 and 2008. It's useful to do these for practice.

Winter Quarter Schedule

· You can view the Winter quarter schedule at a glance here. Note that it's page 4 of the class syllabus. Bookmarking it may be useful.

Please download these documents if you haven't already done so.

· Class syllabus

· Handout packet.

· Textbook errata sheet. Be sure to go through the text and actually implement the errata or you will be confused down the road.

Readings for Monday, 1/11 lecture

· Text, Chapter 1, p. 39 - end of chapter; Chapter 2 through p. 69.

Exam #1

· Exam #1 will occur on Wednesday, 1/13/2010 from 8:30 - 10:30. It will cover the lectures given on 1/4 and 1/6. It will cover the textbook through p. 39 (although reading through p. 43 wouldn't hurt).

Final version of Homework #1: Due Thursday, 1/7/2009 at 12:30 PM. Please leave your completed HW with a TA or in Alec's mailbox. Alec's mailbox is in the Guthrie Hall mail room in the back of the room.

· Chapter 1:1-4b, 6

Office hours for Alec Scharff

· Alec's office hours are: Tues & Thurs, 9:30-11.

Readings #1: (Relevant to Lectures of 1/4/10 and 1/6/10)

· Preface, Introduction Chapter, and Chapter 1

Homework #1: Due Thursday, 1/7/2009 at 12:30 PM (Yes, that's right, it's due the first Thursday of the class; the first exam is Wednesday, 1/13/10). NOTE: Depending on how much material I get through on Wednesday 1/6/09, some of these problems may be dropped from HW #1, and will show up on HW #2.

· Chapter 1:1-4, 6, 9, 10, 12, 14, 15, 18, 21

Emailing questions to me (gloftus@u.washington.edu)

· I get 100 - 200 email messages a day and it takes me a very long time to go through them. So I'd like you to be circumspect in emailing questions to me. If you have a question that needs an urgent answer, then phone me, stop by, or email me. However, if the question can be answered by a TA, then please direct it to your TA or any TA. If the question can wait, ask someone during ofice hours, or raise the question in section or in class. Thanks.

Greetings!

· This site contains information that will be relevant to Psychology 317-317 during Winter and Spring Quarters of 2010 (readings, homework, etc). Please bookmark it and check it at least once per day. Newest information will be at the top of the page, but I will retain all information throughout the quarter.

Sections

· Please ignore the section that the UW assigned to you. To equalize the number of people in each section, we will assign you to sections. Section assignments will be posted on 1/8/2010