Materials for Class - Repeated Measures

Class,

These are materials you will likely be using for today's class

Chapter 14 (Repeated Measures) Powerpoints

Table 14.3 data set

Table 14.4 data set

Table 14.7 data set

MacLin's Advanced Statistics Blog

MacLin's Advanced Statistics Blog

Exam 3 Study Guide

Advanced Statistics ­ Study Guide Exam 3


Since statistics are cumulative, you need to be familiar with all of the statistical procedures we have covered so far:
Chi-square
T-tests
Correlation (pearson's and spearman's - you should know the difference between the two)
Regression (you should be able to make a scatter graph and draw a regression line on it).
One-way Anova
Factorial Designs
You should be able to use G Power to calculate power.
You should be able to enter the data by hand if necessary for any of these statistical procedures and you should able to interpret your results and make graphs if asked for.
You should be able to cut and paste output and graphs from SPSS or Excel into word.
You should be able to generate syntax if necessary and you should be able to modify syntax to conduct tests for simple effects.
You should be able to interpret you results.
You should be able to interpret output if given to you. You should also be able to determine what procedure was used to create the output.
If you are familiar with the material and how it was covered on Exam 2 you should be fine with procedures we have already covered. If you are familiar with the material from the homework and how to write it up in APA style you will well on the exam.
THERE WILL NOT BE ANY MULTIPLE CHOICE QUESTIONS ­ THIS TIME. So practice your stats and write-ups. This should all be stuff you are familiar with and have had ample feedback on thanks to Jen. Make sure you are fluent with the procedures so you don’t get stuck and run out of time.
Let me know if you have any questions.


--Dr. M

MacLin's Advanced Statistics Blog

MacLin's Advanced Statistics Blog

Exam 3 - Study Guide

Advanced Statistics – Study Guide Exam 3

Since statistics are cumulative, you need to be familiar with all of the statistical procedures we have covered so far:
Chi-square
T-tests
Correlation (pearson's and spearman's - you should know the difference between the two)
Regression (you should be able to make a scatter graph and draw a regression line on it).
One-way Anova
Factorial Designs
You should be able to use G Power to calculate power.
You should be able to enter the data by hand if necessary for any of these statistical procedures and you should able to interpret your results and make graphs if asked for.
You should be able to cut and paste output and graphs from SPSS or Excel into word.
You should be able to generate syntax if necessary and you should be able to modify syntax to conduct tests for simple effects.
You should be able to interpret you results.
You should be able to interpret output if given to you. You should also be able to determine what procedure was used to create the output.
If you are familiar with the material and how it was covered on Exam 2 you should be fine with procedures we have already covered. If you are familiar with the material from the homework and how to write it up in APA style you will well on the exam.
THERE WILL NOT BE ANY MULTIPLE CHOICE QUESTIONS – THIS TIME. So practice your stats and write-ups. This should all be stuff you are familiar with and have had ample feedback on thanks to Jen. Make sure you are fluent with the procedures so you don’t get stuck and run out of time.
Let me know if you have any questions.

--Dr. M

Excel Line Graph Tutorial

Some of you requested more detail on how to make a graph in excel to graph main effects and interactions. I hope this is helpful.

Excel graph tutorial

Take care,

--Dr. M

NPR's "This I Believe" Series

NPR has a very short essay about failure by Jon Carrol. Carrol begins his essay, "Last week, my granddaughter started kindergarten, and, as is conventional, I wished her success. I was lying. What I actually wish for her is failure. I believe in the power of failure."

"Failure is a good thing"

Chapter 13 Homework pdf

Here are the slides I showed in class for homework 13.
CH13 Homework pdf

Homework for this weekend

The homework for this weekend is to get caught up on ALL of your homework. Everything should be turned in. Any overdue homework which be charged the late fee as outlined in the syllabus.
If you are caught up, have a nice weekend. If you ar enot caught up, please let em know what I can do to help you get caught up.
Take care,

--Dr. M

Chapter 13 pdf

c13_bw.pdf

Chapter 12 homework

I want to go a bit easy here so those who are behind in the homework can catch up. Just work through the examples in chapter 12 using SPSS and the data sets from table 12.1. Make sure you report your results where appropriate.
This should be easy - all you have to do is follow along with Howell's calculations using SPSS...
If is not easy follow the pdf I put up for class today.
Take care,

--Dr. M

Chapter 12 PDF

Chapter 12 pdf

Simple Effects

Tricking SPSS to calculate simple effects for Factorial Anova: http://www.visualstatistics.net/SPSS%20workbook/simple_effect.htm

MacLin's Advanced Statistics Blog: Homework Ch 11

Homework Ch 11

Homework Chapter 11 (Due Tuesday)
11.1
a. Make boxplots for the data. Discuss the boxplots
b. Conduct a one-way analysis of variance on the data. Discuss the findings.
c. Calculate eta and power. Discuss the findings.
11.2
Conduct a one-way and a t-test using the data in 11.2. Discuss your findings with each test. How are the two tests similar and or different?
11.3 answer questions a, b, and c.
11.27
a. Make boxplots and a linegraph (see the options button when you run the procedure) for the data. Discuss the graphs – include in your discussion which graph is more informative.
b. Conduct a one-way analysis of variance on the data. Discuss the findings.
c. Calculate eta and power. Discuss the findings.
Let me know if you have any questions,

--Dr. M

Homework Chapter 9

1. Using the data from 9.1Include the relevant output in your document/homework.Enter the data into SPSS. Make sure you name and label your variables.Make a scatterplot for Y& X1; and Y&X2Discuss the scatterplots based on how they appear….Conduct correlations for all 3 variables at onceWrite up the results of the correlation analysisConduct a regression analysis for each variable pairWrite up the results of the analysis (include the formula for the line)Draw the line on your scatter plot.Discuss how well you think the line fits your data (goodness of fit)
2. Repeat the above for 9.273.
3. Exercise 9.31; and 9.32 examine the relationship between weight and height for men (9.31) and women (9.32).Enter the data into SPSS using a column for sex, height, and weight. When you analyze subpopulations use the select case to select men or women.Make a scatter plot for the combined data, and one each sex (so you will have three)Discuss the scatterplots individually, then compare and contrast two scatterplots for the sub samples. Are they the same or different? How do they compare to the scatterplot for the over all data?Next compute r for the overall data and then for the subsamples?Discuss your findings. (Make sure you include in your discussion issues related to the assumptions for correlation and regression plus the factors that affect correlation).This is the sort of thing I will ask you to do on the next exam.Let me know if you have any questions,
--Dr. M

Reading Guide for Chapter 9

Reading guide – Chapter 9 – Regression
** I will not be asking you to do any of the computations **
232 – know the defs
9.1 scatterplots
9.2 relationship between health and stress
9.3 understand covariance (don’t have to do calculations)
9.4 understand Pearson’s
9.5 understand regression line and terminology; understand standardized regression coefficients; correlation and beta
9.6 understand error estimates; error predictions;
9.7 understand assumptions
9.9 understand computer examples
9.11 role of assumptions
9.12 factors that affect correlation

Let me know if this is helpful and I will do it for the next chapter,

--Dr. M

Home Work Due Tuesday 10/10

Homework due next Tuesday is 8.1 to 8.10 (odd and even). Try to use g power to find your answers.
Blog if you have any questions.
Thanks,

--Dr. M

Reporting Results

Some of you have asked for additional resources for reporting results of t-tests. If you google - reporting results t-test - you will find some of the following good sites:
http://depts.washington.edu/psywc/handouts/pdf/stats.pdf#search=%22reporting%20t-test%20results%22
http://www.ilstu.edu/~jhkahn/apastats.html
http://www.amherst.edu/~psych/psych22/report.html
notice these do not always include effect size or confidence intervals. If asked to report these you need to iclude them....
Hope that helps,

--Dr. M