Assumptions and Consequences of Treating Providers in Therapy Studies as Fixed Versus Random Effects:: Reply to Crits-Christoph, Tu, and Gallop (2003) and Serlin, Wampold, and Levin (2003)
Siemer M, Joormann J. Assumptions and Consequences of Treating Providers in Therapy Studies as Fixed Versus Random Effects:: Reply to Crits-Christoph, Tu, and Gallop (2003) and Serlin, Wampold, and Levin (2003). Psychological Methods 2003, 8: 535-544. PMID: 14664688, DOI: 10.1037/1082-989x.8.4.535.Peer-Reviewed Original Research