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## Week of Notes 13

by: Dora Notetaker

17

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2

# Week of Notes 13 400

Dora Notetaker
UAB
Research in Political Science
John E McNulty

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Here are the notes from Tuesday, Nov. 17 (we didn't have class on Thursday). These notes include the kai-square statistic and how to do it in SPSS.
COURSE
Research in Political Science
PROF.
John E McNulty
TYPE
Class Notes
PAGES
2
WORDS
CONCEPTS
Statistics, political science, research methods
KARMA
25 ?

## Popular in Public Relations

This 2 page Class Notes was uploaded by Dora Notetaker on Friday November 20, 2015. The Class Notes belongs to 400 at University of Alabama at Birmingham taught by John E McNulty in Summer 2015. Since its upload, it has received 17 views. For similar materials see Research in Political Science in Public Relations at University of Alabama at Birmingham.

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Date Created: 11/20/15
PSC 4002D Research in Political Science Dr McNulty Set of Notes 13 Week of Nov 16 Tue Nov 17 Class is canceled on Thursday Conceptualizing and going over the chi square statistic Coin flip 0 You flip it and it is 5050 that you ll get one or the other But you can flip it 10 times and get heads 10 times There s an expectancy and a result You may expect to get 5 heads and that s pretty likely But the more heads you expect the less likely you ll get heads But if you flip a coin a 1000 times the less likely it is that you ll get 600 and 400 of each 0 Because the bigger numbers you use the more the results get pushed toward the mean But if you have 2 coins 0 You flip them 6 times you expect 3 heads 3 tails for one and 3 heads and 3 tails for the other This table is a chi square distribution The chi square distribution is just taking probability of 2 different distributions and using a formula to calculate how unlikely it is o The further you get from your expected probability the less likely it is that it is random chance 0 The chi square distribution is a way of measuring how far you are from your expected Degrees of freedom 0 rows1 columns1 o A 2 by 2 table will have 1 degree of freedom 0 The amount of cases you have 1 Way to calculate chi square in SPSS o Analyze Descriptive Statistics Crosstabs Click on Statistics Check Chi square Click on Cells Check Expected Put in 2 categories that you want Hit OK

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