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statistical tests - hp340 final
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Terms in this set (9)
t-test
one categorical independent variable (2 groups)
one continuous dependent variable
tests for a difference in means between the two groups
one-way ANOVA
one categorical independent variable (>2 groups)
one continuous dependent variable
tests for a difference in means among multiple levels of a factor
two-way ANOVA
two categorical independent variables (>2 groups)
one continuous dependent variable
tests for the effect of two factors and an interaction on an outcome
correlation
continuous independent variable
continuous dependent variable
tests for the strength of the linear relationship between two variables
pearson's correlation
parametric - assumes normal distribution
spearman's correlation
non-parametric - does not assume variables are normally distributed (outliers/skew)
simple linear regression
continuous independent variable
continuous dependent variable
describes a linear relationship between two variables
chi-square (goodness of fit)
one categorical variable and a hypothesized distribution
compares an observed distribution to an expected distribution
chi-square (independence)
two categorical variables
tests for an association between two variables
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