I am struggling to understand what "number of samples" for correlation tests refers to.
Let's say you run a correlation test between weight and age.
You take 12 measurements of weight, and 12 of age, and find a positive correlation.
You decide to report the results as "Weight and age showed a positive correlation (r coefficient, number of samples, significance level)...".
Is the number of samples 12 (the number of measurements taken for each variable), 2(the number of variables) or 24 (the total number of variables used in the correlation test)?