title: Use of the Johnson-Neyman technique as an alternative to analysis of covariance.
authors.affiliation: School of Nursing, University of Maryland at Baltimore, USA.
authors.forename: S G
authors.initials: SG
authors.lastname: Dorsey
authors.forename: K L
authors.initials: KL
authors.lastname: Soeken
mesh_terms: D000704:Analysis of Variance; D002405:Catheterization, Central Venous / Q000706:statistics & numerical data; D006302:Health Services Research / Q000379:methods*; D006801:Humans; D016014:Linear Models; D015233:Models, Statistical