Deck 10 – Tests of Independence (LM9)

For the Pearson correlation $t$-test, what null hypothesis is tested about the population correlation?

$H_0:ho=0$.

When would you use a Pearson correlation $t$-test instead of a rank-based test?

When testing linear association with a parametric correlation measure.

What is the test statistic for the Pearson correlation test of independence?

$t=r\sqrt{\frac{n-2}{1-r^2}}$.

What degrees of freedom are used for the Pearson correlation $t$-test?

$n-2$.