%0 Journal Article %J Clinical Psychological Science %D 2019 %T An upper limit to youth psychotherapy benefit? A meta-analytic copula approach to psychotherapy outcomes %A P. J. Jones %A P. Mair %A S. Kuppens %A Weisz, J. R. %B Clinical Psychological Science %V 7 %P 1434-1449 %G eng %N 6