title: A potential limitation of treatment efficacy research: a comment on Camarata, Nelson, and Camarata (1994)
authors.forename: D
authors.initials: D
authors.lastname: Snow
authors.forename: L
authors.initials: L
authors.lastname: Swisher
authors.forename: M
authors.initials: M
authors.lastname: McNamara
authors.forename: B
authors.initials: B
authors.lastname: Kiernan
mesh_terms: D006801:Humans; D007100:Imitative Behavior; D007806:Language Disorders / Q000628:therapy*; D012106:Research; D013070:Speech Therapy; D016896:Treatment Outcome