title: Three-factor designs unable to examine the interactions (part 2).
abstract: Three-factor designs that are unable to examine the interactions include crossover design and Latin square design, which can examine three factors: an experimental factor and two block factors. Although the two design types are not quite frequently used in practical research, an unexpected research effect will be achieved if they are correctly adopted on appropriate occasions. This article introduced the 3×3 crossover design and the Latin square design by examples.
authors.affiliation: Academy of Military Medical Sciences, Beijing, China. lphu812@sina.com
authors.forename: Liang-ping
authors.initials: LP
authors.lastname: Hu
authors.forename: Xiao-lei
authors.initials: XL
authors.lastname: Bao
mesh_terms: D018592:Cross-Over Studies; D015233:Models, Statistical; D012107:Research Design