Psychology 624  01Experimental and Statistical Research MethodsProf. Martin PackerSpring 2004, Thur 3:05  5:45 

This course will provide an overview of empiricalanalytic research methods as these are used in psychology, specifically in clinical and developmental psychology. Readings and lecture material will address theoretical and practical issues pertaining to research design, data collection, and data analysis, as well as strategies for reviewing and critically evaluating published research reports. By the end of the course, students should be able to understand and critically evaluate the purposes and procedures of research design, including descriptive and inferential statistics. Readings:Ray, W. J. Methods: Toward a science of behavior and experience.
Wadsworth. (Available in the Duquesne bookstore. Note: Any edition of
this book since the 4th can be used. Earlier editions can be found on
Amazon.com and elsewhere.) Course requirements:Final grades will be based on class participation, two
exams, a final paper, short weekly homework assignments and short weekly
inclass quizzes. The percentage each of these contributes to the final
grade is shown below. Class participation will be evaluated in terms of
students’ contributions to discussions of assigned readings and related
issues. The exams will include multiple choice and brief essay questions
concerning research design and statistical techniques. Homework will be
shortanswer questions linked to the assigned reading. Quizzes will be
true/false questions linked to the assigned reading. The final paper will
entail a critical analysis of a published research report (distributed
in class after Spring Break). The paper will be due Friday April 19th
at 4:00. 

Exam 1 Exam 2 Class participation Weekly homework Weekly quizzes

20 percent 20 10 5 5 
Week 1 
Introduction 

Steps of EmpiricalAnalytic Research MethodologyProblems with this Methodology 
Some Useful Resources:A GLOSSARY of statistical termsInternet Resources in Statistics (people, journals,...)Webpage for Cherulnik's methods book (with guides, etc.) 

If you are interested......additional readings:Kuhn, T. S. (1962). The structure of scientific revolutions. Chicago: University of Chicago Press. Latour, B., & Woolgar, S. (1979/1986). Laboratory life: The construction of scientific facts: Princeton, NJ: Princeton University Press. Bernstein, R. J. (1976). The restructuring of social and political theory: University of Pennsylvania Press. Bernstein, R. (1983). Beyond objectivism and relativism: Science, hermeneutics, and praxis: Philadelphia: University of Pennsylvania Press. Feyerabend, P. (1975). Against method: Verso Press.


Week 2 
The logic of hypothesis testing 
For this week read: Ray Ch 1, 2 & 3Material on Electronic ReservePlease print the 3 articles and bring them to class next week. Thanks! 
Operationalizing a Hypothesis 
Main Points:

Week 3 
Measurement, descriptive statistics 

Reading for this week: Ch 4, Ch 13.Homework: review questionsWhat chapter 4 is aboutWe will start to discuss validity...and the threats to validity...and test validityMain Points:

Interact with a histogram (and other Applets for statistical concepts)A more advanced account of measurementFurther Readings:For a 1950s, Logical positive account: Woolf, H. (Ed.). (1961). Quantification: A history of the meaning of measurement in the natural and social sciences. Indianapolis: BobbsMerrill. A Kuhnian alternative view: Kuhn, T. (1961/1977). The function of measurement in modern physical science. Reprinted in The essential tension (pp. 178224). Chicago: University of Chicago Press. A more recent argument: Rizo, F. M. (1991). The controversy about quantification in social research: An extension of Gage's "'Historical' sketch". Educational Researcher, 20(9), 912.We've mentioned this several times:Messick, S. (1989). Validity. In R. L. Linn (Ed.), Educational measurement (3rd ed., pp. 13103). New York: Macmillan. 

Week 4 
Inferential Statistics 

Reading: Ray, Chapter 5 
Overview of today's topic 

ZeroOrder Correlations...Concept MapsVassar Statistical Resources

Main Points:


Week 5 
Testing Hypotheses 

Chapter 6 
Main Points:There are 3 steps to hypothesistesting:
The Fratio is an important statistic:


Week 6 
Experimentation 

Chapter 7 Main Points:

Aspects of Research DesignThreats to ValidityTrue Experimental Design: Between SubjectsPortion of the Table of t 

Week 7 
BetweenSubjects Designs 

Chapter 8 ANOVA: Words and Alcohol studyWe continue to explore the logic of true experiements with betweensubject designs. Now we expand our focus to consider experiments with more than one independent variable. 
Main Points:


Week 8 
Exam 1 

Here's a copy of the Study Guide 

Week 9 
WithinSubjects & MatchedSubjects Designs 

Ch 9 
Main Points:


Paul Cherulnik, author of Methods for behavioral research : A systematic approach (Sage, 2001), has designed a set of "Validity Scorecards" for assessing the way different research designs address threats to internal and external validity. We have used these as a template for some of the discussions of validity on this page. You can use them to guide your analysis of the paper you are working on for the end of the semester. Look here for blank Validity Scorecards for True, Quasi, and Preexperimental designYou may also find Cherulnik's Study Analysis Form useful. And Cherulnik offers Quick Guides to many of the topics we have covered in this course. 
Week 10 
QuasiExperimental Design 

Ch 11 & 14 How threats to validity are dealt with by:

Main Points:


Week 11 
Multiple Correlation Analysis 

Readings: BioStats chapters on ereserve 
A few things about Factor AnalysisOne or two things we know about Regression 

Regress this! (a cute applet)Multiple Regression with Ren & Stimpy 
Main Points:

Week 12 
SingleSubject Designs 

Ch 12 
Main Points:


Read APA on research reporting: Statistical
Methods in Psychology Journals: Guidelines

Week 13 
Parametric & NonParametric Statistics 

Reading will be assigned 
Main Points:


Common Nonparametric testsWhich nonparametric test to use? (PDF document)Which parametric test to use? 
Week 14 
Study Guide for exam 2 
Exam 2 

New link!! Developmental Designs 