Lectures and Assignments for
PSYC 6430, Autumn Semester, 2020
Back to the Future
PSYC 6430: Week 1, Monday the 10th of August through
Sunday the 16th of August, 2020
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Go to the course base page at
http://core.ecu.edu/psyc/wuenschk/start30.htm . Read this document carefully. If you have any questions about the course, email me or ask me in class.
-
Complete the
grades posting document
. Return it to me by email.
-
Read and study the first two chapters in the text book. For the most-part, this should be review of material you learned as an undergraduate.
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Basic concepts from the first chapter of Howell.
Here is a summary of them, let me know if you need
more discussion of any of them.
- Read the six articles that are on
your reading list under the heading "Howell Chapters 1 and 2: The Basics."
- Please read
this document,
which will give you a review of very basic concepts in statistics.
- View these video tutorials:
- Please subscribe to the Question & Answer forum in the Canvas
Discussion Board.
- Read Scales of
Measurement and the associated
slideshow. If there is anything there which you do not understand,
post a query in the Question & Answer forum in the Discussion Board.
- Read the document at
http://core.ecu.edu/psyc/wuenschk/docs30/Descript.pdf
and the
associated slideshow. This is pretty much a summary of the
material in Chapter 2 of our text. Again, if you have questions, post in the
Questions & Answers forum.
- Add your photo to your
Canvas
Profile. You may add a bio and links if you wish.
- Get started on the
Introductions
Assignment, which is due at 5 PM on Saturday the 15th of August.
Late completions will be penalized 1 point for each day or fraction of day late.
- Complete these
practice exercises
- The assignment at
http://core.ecu.edu/psyc/wuenschk/SimData/XD-descr.htm
is due at noon on Thursday the 20th of
August, 2020.
- Statistical Computing
- Pro Tip: Do not be thinking that you can rely on the slideshows to
teach you what you need to learn in this course. Think of them as
being nothing more than outlines of the material to be learned. The
details you need to understand the material are in the associated documents.
- Read Out
Loud -- Get the Adobe Acrobat Reader to read a pdf to you.
PSYC 6430: Week 2, Monday the 17th of August through
Sunday the 23rd of August, 2020
PSYC 6430: Week 3, Monday the 24th of August through
Sunday the 30th of August, 2020
PSYC 6430: Week 4, Monday the 31st of August through
Sunday the 6th of September, 2020
PSYC 6430: Week 5, Tuesday the 8th of September through
Sunday the 13th of September, 2020
PSYC 6430: Week 6, Monday the 14th of September through
Sunday the 20th of September, 2020
-
Stats Chat Monday, 1:30 PM
- Discussion of the results of a few of the PDS-1 analyses
- Lindsey Bradley: COVID Cases and State Politics
- Kate Olson: Per Capita Gross Domestic Product, Northern Hemisphere
versus Southern Hemisphere
- Emily Vinchiarello: Differences Between Democratic States and
Republican States on Happiness and Alcohol Consumption.
- Q&A
-
Basic
Probability and Contingency Tables
- Odds and Football Assignment
-- due at noon on Friday of this week.
- Complete the assignment presented in the document
Contingency Table Assignment. For this assignment, you will be working
with your personal data set again. Prepare a Word document in which you
present your results and conclusions, as explained in the instructions. In
the Contingency Table discussion in Canvas post a message briefly explaining
the nature of the relationship you found between your two dichotomous
variables. Professor Karl will select a few students who will be asked to
share their Word documents with the class. -- due at noon on Friday of this
week.
- Using
Indoor Toilets Causes Cancer
- Start learning how to use
R
- Learn
how to obtain exact
p values in SAS and in
SPSS.
Beware rounding in SPSS.
-
The Binomial Distribution
PSYC 6430: Week 7, Monday the 21st of September through
Sunday the 27th of September, 2020
- Quiz 2 -- Available from 1:00 PM until 1:20 PM on Monday the 21st
of September. Ten minutes to complete ten true/false questions, on
material covered during the first six weeks of the semester.
- Stats Chat -- 2 PM on Monday the 21st of September
- Katelyn Amstutz -- Gender and Back Problems
- Sarah Smith -- Gender and Checking Accounts
- Delaney Keith -- WTF, an Odds Ratio of ZERO ?
- Q&A
- Get started on the
take-home portion of your midterm exam, which is due
at noon on Friday the 25th of
September
-
Solutions to last week's Binomial Assignment
- Read through the APA Publication Manual, 7th edition,
paying special attention to those parts that relate to the Results
section:
- Chapter 4, Writing Style and Grammar
- Chapter 6, Mechanics of Style, including Table 6.5, Statistical
Abbreviations and Symbols
- Chapter 7. Tables and Figures
- I shall expect you to use proper APA style when presenting
the results of statistical analyses you do for this class. As
with a thesis, you should use the style appropriate for a final
manuscript (looks like it would in a journal), not that
appropriate for a copy manuscript (looks like it would when
submitted for consideration for publication).
- Since many of you will be completing a thesis or dissertation before
you graduate from our program, I also want you to become familiar with
the style which is appropriate for the thesis. Towards that end, part of
this assignment is for you to familiarize yourself with all of the
material I have linked from my page
Thesis Links.
- Read
z
versus t -- for tests of means, we shall soon abandon z
for t and F.
-
Chi-Square
lecture notes
-
Chi-Square Video
- Read
2 x 3 Contingency Table Analysis -- making pairwise comparisons after a significant omnibus test.
- Read Chapter 6 in Howell, the chi-square distribution
- Document about the
Reversal Paradox
- Simpson's Paradox in Cat-Topia
- Learn how to create
Confidence Intervals for Proportions
-- this is a reference document in case you ever need to construct such confidence intervals.
- Also look at
Comparing
Correlated Proportions -- McNemar's Test
- Chi-Square as Degrees of Freedom Increase
-
Simulate the Chi-Square Distribution
- Learn how to use
SAS and
SPSS to conduct Contingency Table Analysis .
PSYC 6430: Week 8, Monday the 28th of September through
Sunday the 4th of October, 2020
- Online Midterm Examination -- Monday the 28th
of September from 1300 until 1500. 48 questions, 60
minutes to complete. Manage your time carefully. This exam is deliberately
speeded so it measures what you have learned rather than how good you are
at searching the Internet for answers. You will be able to see your answers
once during the time the exam is available (if I understand how Canvas exams
work).
- Pearson Chi-Square Assignment
-- due at 5 PM on Friday the 2nd of October.
- Video Tutorials
- One Mean Inference
Associated Document
- Reminder: Do not be thinking that you can rely on the slideshows
to teach you what you need to learn in this course. Think of them as
being nothing more than outlines of the material to be learned. The
details you need to understand the material are in the associated documents.
PSYC 6430: Week 9, Monday the 5th of October through
Sunday the 11th of October, 2020
- Quiz 4: Available from Monday at 1:00 until 1:20. Ten items,
ten minutes allowed to complete. Chi-square and the Midterm
Remediation document.
- Stats Chat, 2 PM on Monday
- Read Out
Loud -- Get the Adobe Acrobat Reader to read a pdf to you.
- Two Mean Inference
Associated Document
-
Two Groups and One Continuous Variable
-- There is more than one way to skin a cat, and more than one way to
investigate the relationship between a dichotomous variable and a
continuous variable.
-
Tests of Equivalence -- how you can assert the truth of an interval
null hypothesis
- Read the materials on
the reading list for Chapter 7. There are quite a few articles here,
but most are short.
- Read
Statistical Tests of Normality -- of little if any use.
-
Measurement Scales and Psychological Statistics: Empirical Science or
Metaphysics? -- how do you know whether your scores are ordinal or
interval?
- Complete the assignment
T-Tests and Related Statistics: SAS -- includes some exercises
for you to complete. Yes,
you can chose to do the exercises with SPSS or R if you wish.
-
T Tests and Related Statistics: SPSS --
one sample, correlated, and independent samples t tests,
point biserial r,
split file, confidence interval for Cohen's d,
Mann-Whitney U, Wilcoxon Signed Ranks Test
- Have a look at the
annotated SPSS output
from a previous student's PDS assignment.
- Read
Complete Example of Independent Samples
t Test
-
Independent Samples t Test with R
-
Related Samples t Test with R
-
Intent to Treat -- example of problems associated with this method
of dealing with missing data in a correlated samples design
PSYC 6430: Week 10, Monday the 12th of October through
Sunday the 18th of October, 2020
PSYC 6430: Week 11, Monday the 19th of October through
Sunday the 25th of October, 2020
-
Stats Chat, Monday, 1 PM.
-
Bivariate Linear
Regression
Associated Document
- Read Chapter 10 in Howell. I shall not devote any lecture time to this
chapter other than that I have previous to this time, but I shall expect you
understand its contents.
PSYC 6430: Week 12, Monday the 26th of October through
Sunday the 1st of November, 2020
-
Power Quiz, Monday, 1 PM until 1:20 PM, ten minutes to complete, ten
true/false items
-
Stats Chat, Monday, 2 PM.
- Go over quiz
- PDS Phi -- Lindsey Bradley, politics and unemployment
- PDS Point Biserial -- Emily Vinchiarello, politics and happiness
- PDS Correlation/Regression -- Haley Maxwell, Rupaul's Drag Race,
Twitter-Instagram followers
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Complete the Corr/Regr Assignment -- due at noon on Friday, 30-Oct-2020.
-
Read Chapter 15 in Howell
-
An
Introduction to Multiple Linear Regression
-
Trivariate Regression By Hand. Read
the document too.
Trivariate Regression Assignment
Multiple Regression With SAS (MReg-SAS.docx, Mreg.sas)
Annotated SAS Output
PSYC 6430: Week 13, Monday the 2nd of November through
Sunday the 8th of November, 2020
-
2 PM Monday:
Stats Chat -- hope I don't have to wimp out this time.
- Solutions for Trivariate Regression Assignment
- Q&A
Take Home Portion of the Final Exam
-- due at noon on Sunday the 8th
of November
Multiple Linear Correlation/Regression with SPSS
(includes construction of confidence intervals for change in R2)
Presenting the Results of a Multiple Regression Analysis
SAS and SPSS
Programs for Comparing Pearson Correlations and OLS Regression Coefficients
-- where the null value of the parameter being tested is not zero.Confidence
Intervals for R and R2 --
SAS and SPSS code to get the CI
Inverting Matrices: Determinants and Matrix Multiplication.
Also available in
PowerPoint format.
Using Matrix Algebra to do Multiple
Correlation/Regression.
Also available in
PowerPoint format.
Assignment:
Multiple Regression by Matrix
Correlation/Regression with R
-- reference document for you
PSYC 6430: Week 14, Monday the 9th of November through
Sunday the 15th of November, 2020
PSYC 6430: Week 15, Final Exam, Monday the 16th of
November, 1300-1500, Online