Psychology 3000:
Statistical Methods in Psychology

   
 
   
 

Instructor: Elizabeth Malloy
Phone: (801) 582-0264
email: beth.malloy@attbi.com

For question about credit or issues related to Distance Education please contact distance@aoce.utah.edu

 

   
 
   
 

Special Announcements requested by the University of Utah:

1) The University of Utah seeks to provide equal access to its programs, services and activities for people with disabilities. If you will need accommodations in this class, reasonable prior notice needs to be given to the instructor and to the Center for Disability Services, 162 Olpin Union Building, 581-5020 (V/TDD) to make arrangements for accommodations. All written information in this course can be made available in alternative format with prior notification.

2) You have 9 months to complete all the course material, including the final, from the date of registration.

3) Official Versions: The official version of the course syllabus and course materials are those posted on the web. The course workbook is available for purchase through the University of Utah bookstore.

4) Important Course Announcements: Occasionally important announcements will be made during the classroom lecture period. These important announcements will be posted online in Message Center. Read Message Center regularly.

   
 
   
 

Prerequisites: PSYCH 1010, MATH 1010, WRTG 1010

Other course materials: Your course web site (www.psych.utah.edu/aoce) has all course materials posted for free. Most notably, all lectures are posted on the website as Web Lectures. You may also download and print the Web Lectures without cost except for your time, paper, and printer ribbon. If you downloaded and printed every part of the course as you went through it, the material (including lectures, tutorials, notes, and homework) would add up to about 1,300 pages.

   
 
   
 

How you will work and learn the material

There will be no standard text book. The ideas will be communicated in a multi-step process that encourages you to be as active as possible in learning statistical ideas.

 

ONLINE

This course has many innovative online computer programs designed to engage you in activities that allow you to learn how to think mathematically.

Actively process the ideas with Web Homework (required). After you have thought about the course ideas, you will be required to go actively over them again by doing homework. Homework will be done on the web and graded immediately by the computer. The computer will keep track of your score and you will be able to check it any time. Homeworks can be done over and over again if you wish to raise your score. Homework answers and the order of homework questions changes randomly each time you redo a homework.

Learn Thinking Strategies by playing games (required). You will also be able to play statistical problem solving games (Detect Difference and Difference to Inference) which teach statistical thinking. Your game scores will be kept by the computer and will be part of your grade. You can play the games and improve your score as often as you like. You can read about the theory behind the games by clicking the Relevant Publications link on the website.

Apply your knowledge in the Virtual Lab (required). You will have an opportunity to practice statistical knowledge in an online virtual lab that allows you to read a literature background, to choose research questions, to design a study that answers research question, to collect data, to analyze data using statistics you have learned, to reach a conclusion, and to write up a brief research report.

Practice your knowledge on Paper and Pencil Homework (recommended). Extra practice homework problems along with complete step-by-step answer keys are published on the web. This practice homework is offered to you as yet another way to engage in active learning of the material, but you are not required to work on it. These practice homeworks will form a focus for lab activities. It is worth noting that the paper and pencil midterm and final exams are very similar in form and content to the paper and pencil practice homeworks.

Read Web Lectures . Web Lectures corresponds to and are integrated with the interactive Authorware visualizations shown in class. The Web Lectures can be read online or printed out and read in hard copy.

View Authorware computer graphics online (optional). The computer graphics shown in class are available online. To view them requires that you download a plugin for your web browser (instructions for doing so are included among the course resources).

THROUGH EXAMS

Learn from Exam Feedback (required). A handwritten midterm and final exam will be a large part of your grade. In this class the exams are considered to be part of the learning process; to this end you will have optional second forms of both exams. If you do not do as well as you like on the first form of an exam you can consider it feedback about what concepts you need to learn better and then use that feedback to study for the the second form.

Competency Testing Approach: Two forms of both the midterm and final exams will be offered, about one or two weeks apart. If you take both forms of an exam, you automatically receive the higher of the two grades. A primary purpose of this multiple testing procedure is, as much as possible within practical constraints, to turn testing into feedback for learning. If you don't like your grade on the first form of the midterm, you will be able to take a second form of the midterm. Your motivation to achieve good grades becomes a motivation to learn the material that you missed on the first form so that you can do better on the second form. Thus the framework for interpreting first form performance de-emphasizes success, failure, and evaluation and moves toward feedback and learning. A second purpose of multiple testing is to move toward testing competencies. The instructor has basic statistical competencies in mind. Students have extra opportunities to attain these competencies by taking second forms of the exams. A third purpose of multiple testing is to increase the validity of the testing procedure: If extraneous factors (such as illness, personal pressures, other exams, etc.) influence your performance on the first form of the exam (thereby making the exam a less valid measure of your knowledge), you will have an opportunity to take it again. The exams will resemble the paper and pencil practice homework.

   
 
   
   
   
 
   
 

Grading Policies

Your grade will be based upon exams (midterm and final), and online activities such as Web Homework, Computer thinking games, and Virtual Lab. If you do not complete all the work in the class you will receive an Incomplete as a grade.
Assuming you complete all the work, your grade will be determined by the percentage of total points that you earn.

Percent to total points required to earn various grades
Percent each activity counts toward total points

A = 90 to 100 percent
B = 80 to 89 percent
C = 70 to 79 percent
D = 60 to 69 percent
E = 0 to 59 percent

Midterm Exam 25%
Final Exam 35%

Web Homework 25%
Virtual Lab 10%
Detect Difference game 5%
Difference to Inference game 5%

There will be no minuses or plusses on the letter grade in this class.

   
 
   
 

Special Computer System Requirements:

Internet Connection. You will need an Internet connection. For your convenience, the faster the connection, the better. If you don't have your own connection, Internet connections are available in labs throughout the U of U campus.
[NOTE: Internet connections made through "proxy servers" (such as those used by many businesses) may not allow you to use the course website unless you make special arrangements.]

Java. We are committed to creating sophisticated online learning environments. The kind of online interactivity we create requires that we use the Java programming language. So you must make sure that your browser is Java enabled. In Netscape 4.7x you can enable Java by selecting Edit/Preferences/Advanced and check "Enable Java."

Web Browser. We recommend that you use Netscape Communicator 4.76 or higher as your web browser, since it does not require a Java Plugin. Internet Explorer and Netscape 6.2 both require a Java plugin. If you choose to use these last two browsers, the resources pages of the website has a tutorial for downloading the Java plugin.

Computer platform: PC's work best with the website for this course. Mac's are problematic. We very much like Mac's but there is no Java plugin for the Mac operating system. Mac OS 10 is supposed to work with Java well but as of this date it still doesn't. While we've written the Java programs in ways that are as Mac-friendly as possible, we have been unable to solve all Mac problems. Most of the website works well with a Mac, but for some functions you will have to change to a PC.

Cookies. You must have your browser set to accept "cookies" which is usually the default setting on most browsers. Accepting "cookies" means that your computer is allowed to send information back to us identifying who you are. We can't give you credit for your work unless we know who you are. In Netscape 4.7x you can set cookies by selecting Edit/Preferences/Advanced and check "Accept all Cookies." [NOTE:Some people like to turn their "cookies" off when visiting certain commercial sites that do not respect privacy; this is a legitimate strategy to protect privacy. But in the case of this course, we must know who you are to be able to give you a grade for your work.]

Plugins. Plugins are programs that give your computer more functionality. All plugins for this course are free and can be dowloaded from the Internet. As noted above, if want to use Netscape 6.2 or Internet Explorer you will have to download the Java plugin.

To use the (optional) Authorware interactive presentations you will need to download a plugin called "Webplayer for PC" or "Webplayer for Mac." Instructions for doing so are on the course site.

To read certain online materials such as practice homeworks you will need Adobe's Acrobat Reader. Most computers already have Acrobat Reader. Instructions for downloading it are on the site.

   
 
   
 
Organization and Flow of Ideas
   
 
Lecture Learning activities
Done?
     
Basic Probability

Interpretations the P number

Independence

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
 

Interface of Stat and Science

IV's and DV's

Measurement Operations

Read Lecture
Make Notes
 
Construct Validity

Modeling DV's as Normal

Read Lecture
Make Notes
 
     
Normal Distribution

Sampling from Normal

P as Area under Normal

StatCenter: Normal Tool &
Sample Normal Tool

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
Normal Tool

Sample from Normal Tool

 
Binomial Distribution

Bernoulli Trials

Read Lecture
Make Notes
 
Finding Binomial Probabilities

Normal Approximation

StatCenter: Binomial Tool

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
Binomial Tool
 
     
Overview Map of Statistics

Descriptive Statistics

Central Tendency as an idea

Comparison of M, Md, & Mode

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
 
Variability as an idea

Range, Average Deviation

Variance

Read Lecture
Make Notes
 
Least Squares Principle

Standard deviation

z-scores

Double Sample Tool
Detect Difference Game

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
Double Sample Tool
&
Detect Difference Game
 
     
Correlation

Scatterplots

Pearson r

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
 
Factors affecting r

Regression

Linear functions

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
 
Least squares regression line

Formulas for regression line

Regression error

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
 
     

Interactions

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
 
Error Variance in Regression

r-squared, and variance accounted for

Virtual Lab Assignment #1 (Do 3 Chapters from Bot Res Vol 4)

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)


Read Lecture
Do Virtual Lab
#1

 

StatCenter: Difference to Inference

Read Lecture
Use Double Sample Tool

Play Difference to Inference Game

 
     
Sampling Distributions

Binomial Sampling Dist

 

 

Read Lecture
Make Notes
Do Web Homework
for Coins
Do Web Homework for Vaccine
 

Sampling Distribution of Mean

SD of Mean Tool  

Estimating Population Parameters

Review SD's and Estimation

StatCenter: SDM Tool

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
 
     
Statistical Conclusion Validity

Coin example

Scientist vs Skeptic

Sci Hyp Vs PCH of Chance

Scientific Vs Statistical Hyp's

Read Lecture
Make Notes
Do Coins Web Homework
(Practice Homework)
 
Hypothesis Testing with Binomial (Vaccine)

Null hypothesis

Read Lecture
Make Notes
 
Rejection regions    
First Form of the Midterm

This is a paper and pencil test which must be taken in the presence of an approved proctor

Optional: You must take one of the two forms of the midterm; and you may take both.  

 

   
Directional hypotheses

1-tailed tests

Significance levels

Do Vaccine Web Homework
(Practice Homework)
 
t-test for Independent Means Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
 
t-test for Correlated Means

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)

 
     

t-test for a Single Mean

 

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
 

t-test for Pearson r

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)

 
     

t-test for regression b weight

StatCenter: Virtual Lab

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)

Virtual Lab #2 for t-tests

 
Chi-Square Goodness of Fit Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
 
Chi-square Test of Association (start) Read Lecture
Make Notes
 
     
Chi-square Test of Association (finish) Do Web Homework
(Practice Homework)
 

Review: Binomial Critical Values

StatCenter: Virtual Lab

 

Virtual Lab #3 for all stats up to chi-square

 

Meaning of degrees of freedom

 

Read Lecture
Make Notes
Do Web Homework
(Practice Homework)

 
     

One-way ANOVA, Independent

Read Lecture
Make Notes
 

One-way ANOVA, Independent

   

One-way ANOVA, Independent

Do Web Homework
(Practice Homework)
 
     
One-way ANOVA, Correlated DV measures Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
 
Two-way ANOVA, Independent DV measures Read Lecture
Make Notes
 
Two-way ANOVA, Independent DV measures Do Web Homework
(Practice Homework)
 
     
Two-way ANOVA, Independent DV measures Read Lecture
Make Notes
Do Web Homework
(Practice Homework)
 
Virtual Lab: How to decide which statistic to use for which research question    
Virtual Lab: How to decide which statistic to use for which research question Virtual Lab #4 all stats for entire course  
     
Review    
     

FINAL EXAM: 1st FORM

This is a paper and pencil test which must be taken in the presence of an approved proctor

Optional: You must take one of the two forms of the final; and you may take both.  
     
   

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