Psychological Statistics PSYC 2330 Dr. Bill Lammers

Introductions Introducing the course Math is a minor component Understanding what numbers can tell you is a major component Calculators Formulas Computerized data analysis (SPSS) Don’t get behind!! Dr. Lammers is the best tutor you will find

Introductions Introducing ourselves Dr. Lammers’ background & interests Students Name Career goal 2 things about yourself that have nothing to do with academics

Getting Started Before our next class: Review the syllabus and the web links on our syllabus Study Chapter 1 in our textbook and begin working the homework problems

Chapter 1 Introduction to Statistics

Statistics, science, & observations Why do we need statistics? In-class exercise

Populations & samples Playing with terms We’re interested in the average GPA of all UCA students We obtain GPAs from 1,000 UCA students What is the term for the group of 1,000? What is the term for their average GPA? What is the term for 1 student’s GPA? What is the term for the technique of using the sample average to estimate the GPA for all UCA students? What is the term that describes how far off our estimate is likely to be?

Populations & samples Playing with terms We’re interested in the average GPA of all UCA students We obtain GPAs from all 10,256 UCA students What is the term for the group of all UCA students? What is the term for their average GPA? What is the term for 1 student’s GPA?

Scientific method and design of research studies Applying a research method to your field In-class exercise Applying terms to an experiment

Variables & measurement Talking about variables In-class exercise Identifying the scale of measurement

Statistical notation Basic statistical notation In-class exercise