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Reasoning in Psychology Using Statistics

Reasoning in Psychology Using Statistics. Psychology 138 Spring 2019. Outline Course format Lecture classes: Conceptual foundations Labs: Calculations and SPSS Brief syllabus review 30 min intro video. Announcements. “ It’s about almost everything in modern society. ”

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Reasoning in Psychology Using Statistics

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  1. Reasoning in PsychologyUsing Statistics Psychology 138 Spring 2019

  2. Outline • Course format • Lecture classes: Conceptual foundations • Labs: Calculations and SPSS • Brief syllabus review • 30 min intro video Announcements

  3. “It’s about almost everything in modern society.” Bennett, Briggs, Triola (2003), Statistical Reasoning for Everyday life • Statistics: tools, used to make data based decisions • Descriptive statistics • Inferential statistics • Data: numbers with a context • How were numbers measured, what do they mean? What are Statistics? Why do I have to take stats Arthur Benjamin: Teach statistics before calculus Peter Donnelly: How juries are fooled by statistics

  4. “It’s about almost everything in modern society.” Bennett, Briggs, Triola (2003), Statistical Reasoning for Everyday life • Statistics: tools, used to make data based decisions • Descriptive statistics • Inferential statistics • Data: numbers with a context • How were numbers measured, what do they mean? • Data science vs. Statistician “Overall employment of mathematicians and statisticians is projected to grow 33 percent from 2016 to 2026, much faster than the average for all occupations. Businesses will need these workers to analyze the increasing volume of digital and electronic data.” Bureau of Labor Statistics What are Statistics?

  5. Syllabus • Where is it?: ReggieNet (via ) • Direct link to syllabus: • http://psychology.illinoisstate.edu/jccutti/psych138/sp19/138syllabus.html • Includes contact information for me and your lab instructors • Course Calendar and Outline • Powerpoint lectures, links to labs, due dates, etc. • Evaluation: • 1000 points total, 900-1000 for A, etc. • I don’t round up, so 899 is a B • Exams: In-lecture & in labs, quizzes, final project, labs

  6. McBride (2018). The Process of Statistical Analysis in Psychology, Sage • Read it before coming to lecture and going to labs • “Stop and Think Practice questions (solutions are in the back) Text book

  7. If you want a little more help, there is a Statistics Tutorial pdf linked to the ReggieNet page (from a past semester). Each section also has practice problems. Stats tutorial Reading Packet (download the pdf)

  8. Week 3 • Main points from the video • Every statistical test starts with an appropriate selection of subjects • Inferences must be based on more than one observation because of variability • Two types of error must be controlled while testing hypotheses • A decision is based on two things: • The difference between groups • The variability of the scores Weeks 5&6 • Inferential statistics: hypothesis testing – rats, robots, and roller skates • Wiley (1977) Week 10 Weeks 10-15 Video review • The Credibility Gap • Michael McKean • David Lander • Harry Shearer

  9. Today’s lab • Getting to know Your GAs and the Lab set up • ReggieNet site • Practice a quiz • Uploading a file • Submitting and assignment Questions?

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