EDUR 8131
Educational Statistics 1

Notes 7a: Chi-square Goodness-of-fit
Notes 7b: Chi-square Test of Association
Determining Which Statistical Test to Use for Test 2 (Discussed in Summary Presentation below)

(1) Summary Presentation

• Document: Chi-square Goodness-of-Fit, Chi-square Test of Association, and Determining which statistical test to use among t-tests, Pearson r, and chi-square tests Word
• Document: Chi-square Goodness-of-Fit, Chi-square Test of Association, and Determining which statistical test to use among t-tests, Pearson r, and chi-square tests PDF
• Video: Chi-square tests (35 minutes) with captions Chi-square tests
• Video Determining Which Statistical Test to Use (16 minutes, material begins page 10 of document above), with captions Determining Which Statistical Test to Use

(2) Reporting statistical results in APA style (Word Documents so you can copy and paste tables)

• Chi-square Goodness-of-fit 
• Chi-square Test of Association 

(3)  JASP Software  

• Chi-square Goodness-of-fit (Summary Presentation Notes 7a; with captions Goodness of fit))
• Chi-square Test of Association (Summary Presentation Notes 7b; with captions Test of Assocation)

(4) Exercise

Chi-square (with answers)

(5) Detailed Presentation 

Notes 7a: Chi-square Goodness-of-fit

• Read: Notes 7a Chi-square Goodness-of-fit
• Read: Moore et al text chapter 9.
• Critical Chi-square table: Critical Chi-square Values  
• Watch and Read: Instructional Videos and Related Materials
  • Supplemental Excel file shown in video: Chi-square Calculations for Examples 1, 2, and 3 
  • Sections 1 to 4: Example 1: Hypotheses, Sex Data, Calculating Chi-square 
  • Sections 5 to 9: Yates' correction, Chi-square distribution, df, Testing Ho, and Decision Rules  
  • Section 10: APA Style for Example 1: Sex Distribution within a Class 
  • Sections 11 to 13: Example 2: Sex Distribution by Class with Unequal Expected Values
  • Sections 14 to 21: Example 3: Births Throughout the Year, APA Style
  • On-line Chi-square Calculator: Examples 1, 2, and 3 Illustrated  (See link below for on-line goodness-of-fit calculators) 
  • Section 22: Exercise 1     
  • Section 22: Exercise 2 and 3  
  • Section 22: Exercise 4  
  • SPSS Instructions: Goodness of Fit 
  • On-line Goodness-of-fit Chi-square Calculators:
    • https://vassarstats.net/csfit.html
    • https://www.quantpsy.org/chisq/chisq.htm (both goodness-of-fit and test of association)

Notes 7b: Chi-square Test of Association

• Read: Notes 7b Chi-square Test of Association  
• Read: Moore et al text chapter 9.
• Critical Chi-square table: Critical Chi-square Values 
• Watch and Read: Instructional Videos and Related Materials
  • Supplemental Excel file shown in video: Chi-square Calculations for Examples 1 and 2
  • Sections 1 to 3: Example 1: Hypotheses, Expected Value 
  • Sections 4 to 7: Calculating Chi-square, df, Decisions Rules  
  • Section 8: APA Style for Example 1: Policy Support by Tenure Status  
  • Sections 9 to 15: Example 2: Abortion Stance by Party Identification
  • On-line Chi-square Calculator: Examples 1 and 2
  •  Section 16: APA Style for Example 2: Abortion Stance by Party ID (to be added)
• SPSS Instructions: Test of Association
• On-line Test of Association Chi-square Calculators:
  • https://vassarstats.net/newcs.html (Important -- specify number of rows and columns to get correct df and p)
  • https://www.quantpsy.org/chisq/chisq.htm (both goodness-of-fit and test of association)