title: On the use of symbolic labels in psychotherapy outcome research: comment on Wills, Faitler, and Snyder.
authors.forename: F L
authors.initials: FL
authors.lastname: Collins
authors.forename: J K
authors.initials: JK
authors.lastname: Thompson
mesh_terms: D001521:Behavior Therapy; D005260:Female; D006801:Humans; D008297:Male; D008370:Manuals as Topic; D008388:Marital Therapy / Q000379:methods*; D010043:Outcome and Process Assessment, Health Care; D012107:Research Design / Q000592:standards; D009626:Terminology as Topic