@article{Frazier2004,
author = {Frazier, P.A. and Tix, A.P. and Barron, K.E.},
title= {Testing moderator and mediator effects in counseling psychology research},
year = {2004},
doi = {10.1037/0022-0167.51.1.115},
journal = {Journal of Counseling Psychology},
volume = {51},
number = {1},
pages = {115--134},
}