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Flückiger, C.; Del Re, A.C.; Wampold, B.E.; Symonds, D.; Horvath, A.O. (2011). How central is the alliance in psychotherapy? A multilevel longitudinal meta-analysis. Journal of counseling psychology, 59(1), pp. 10-17. Dubuque, Iowa: American Psychological Association 10.1037/a0025749
Flückiger, C.; Del Re, A.C.; Wampold, B.E.; Symonds, D.; Horvath, A.O. (2011). Treatment and design as moderators of the relationship of the alliance and outcome - A multilevel longitudinal meta analysis, Paper presented at the 42nd SPR congress, Bern, Switzerland.
