key words!!!!! Flashcards
correlation
measures the relationship between 2 continuous (or numerical) variables of interest- if something happens to X what happens to Y
Pearson’s R
A statistic that quantifies the linear correlation between two variables ranging from -1 to 1
Coefficient of determination
Tells us the proportion of variance in one variable that can be accounted for by the other variable
Spearmans Rho
a non-parametric test correlation coefficient used for when data is not normally distributed
intercorrelation
Association between more than 2 variables
Bonferroni adjustment
conducting many correlations at once increases the chance of Type 1 error. Adjusts the significance level by dividing normal significance value by number of tests performed.
Correlation matrix
can show you multiple correlations between variables at once
y is response, x is…
predictor
chi-squared
non-parametric tests of inference for categorical data
cramer’s v
measures effect size