The unclutterer.com blog has an interesting item about assessing a household’s level of disorganization. They reference the National Study Group on Chronic Disorganization’s Clutter-Hoarding Scale. The Scale has five levels, with a level one being a light amount of clutter and a level five being an unlivable and unsafe environment. For example, a level III indicator is audible, but not visible, evidence of rodents!
You can download a copy of the Clutter-Hoarding Scale off the NSGCD website.