statistical stats Flashcards
when do you do a chi squared test
when both dependent and independent variables are qualitative
when do you do a logistic regression test
when dependent variable is qualitative
regardless of the type of independent variable
when do you do a t-test
when the dependent variable is quantitative
and the independent variable is qualitative
when do you do ANOVA
when the dependent variable is quantitative
AND
when the independent is qualitative
when do you do a linear regression test
when the dependent variable is quantitative, regardless of what the independent variable
when do you do a correlation test
when both the dependent variable and the independent variable are quantitative
equations for true positive and false negative
TP= (sensitivity) * (# ppl w the ds) FN= (1- sensitivity) * (## ppl w the ds)
which statistical test should be used to compare the means of groups of subjects?
two sample t test
