Day 9: One-way ANOVA

October 16, 2008 by  
Filed under 10-Day Tour

 When more than 2 groups are to be compared, multiple t-tests are conducted because of the increased likelihood of Type I error. Instead, before subgroup comparisons are made, the variance of the entire design is analyzed. This pre-analysis is called an Analysis of Variance (ANOVA for short). Using the F-test (like an Analysis of Regression), an ANOVA makes a ratio of variance between the subgroups (due to the manipulation of the experimenter) to variance within the subgroups (due to chance).

 

NOW YOU CHOOSE
    
Day9: 1-Way ANOVA
    Bit More About 1-Way ANOVA
    Even More About 1-Way ANOVA
    Calculate 1-Way ANOVA
    Practice Problems
    More Practice Problems
    Word Problems
        
Sim1        Sim2         Sim3
        Sim4        Sim5         Sim6
        Sim7        Sim8         Sim9
     Audio: Lectures
    Vocabulary
    Formulas
    Quiz 9
    Summary

Comments

2 Responses to “Day 9: One-way ANOVA”

  1. Statistics For Psychology : StatNut.com on June 27th, 2009 1:52 am

    […] t-Test     Chapter 9: Introduction to the Analysis of Variance           See Day 9: One-way ANOVA     Chapter 10: Factorial Analysis of Variance           See Day 10: Advanced […]

  2. Gravetter & Wallnua : StatNut.com on June 27th, 2009 2:42 am

    […] 12: Estimation      Chapter 13: Introduction To Analysis Of Variances           See Day 9: One-way ANOVA      Chapter 14: Repeated Measures And Two-Factor Analysis      Chapter 15: Correlation And […]

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