This is a negative correlation.
The negative sign indicates that a high score on the X variable would predict
a low score on the Y variable. The absolute value of .50 suggests a fairly
predictable relationship between X and Y. A correlation of -.50 would be considered
a large correlation in psychological research even though it is only half-way
between no relationship and a perfect relationship. There would be a modest
amount of scatter on the bivariate plot.