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Statistics - Coggle Diagram

- - - - Non-parametric tests = when making use of nominal or categorical tests or when assumptions are violated, however, they hold less power than their parametric counterparts
        
        Mann-Whitney U test
        
        Wilcoxon Signed rank test
      - Parametric tests
        
        Independent T-test
        
        All these tests require assumptions to be met
        
        independence (each participant can only appear once in the study, does not apply for paired samples)
        
        Normality (shapiro wilk, lavene's test etc)
        
        Scale of measurement (data must be ratio interval data)
        
        Homogeneity of variance
        
        Paired Samples T-test
        
        One Sample T-test