R is always between -1 and +1, the closer the absolute value of r is to 1, the stronger the linear correlation between the two variables.
A negative r value means there is a negative correlation: as one variable increases, the other variable decreases.
In this case: r = -0.25, indicating a weak negative correlation. Meaning increased body fat is associated with lower lung capacity.
FA 2018 p.259
submitted by โcassdawg(1781)
The study found a negative coorelation. Coorelation is used to express associations between two variables. Negative coorelation coefficients mean that there is a general inverse relationship between the variables, i.e. as one increases the other decreases.
The coorelation coefficient, r, is the slope of the relationship found between the variables.
Here is a graphical depiction of coorelation.