Objective: Exis ting scales of functional performance are either insufficiently sensitive or omit some important daily life tasks. This paper demonstrates that a n ew scale of self-perceived disablement in the vestibularly impaired population-the Vestibular Disorder s Activities of Daily Living Scale (VADL)-differentiates between disabled and healthy persons and evaluates the a ssociations of this a ssessment with other m easures of vestibular disorders. Study Design; Prospective. Methods: Subjects were 1) a symptomatic, healthy adults, 2) patients with benign paroxysmal positional vertigo, 3) patients with chronic vestibulopatby excluding Meniere's disease, postsurgical vertigo, and postconcussion vertigo, and 4) family member s. Patient were a ssessed on the V ADL, the Dizziness Handicap Inventory, level of vertigo, and computerized dynamic posturography. Healthy subjects and family members completed the VADL. Results: The VADL differentiates healthy persons from patients but does not differentiate between patient groups. Patients perceived them selves as mor indep endent than their spouses perceived them to be. Scores are weakly correlated with vertigo frequency and posturography scores for conditions with unreliable kinesthesia and absent or unreliable vision. The VADL is more responsive to higher levels of impairme nt than the Dizziness Handicap Inventory. Conclusions: This well-normed, self-administer ed scale of elf-perceiv d disablement is u seful for evaluating the functional status of patients with peripheral v stibular disorders. Perceptions of patients and ignificant other vary, but scores are moderately correlated with some standard measures of vestibular function. As it assesses a differ ent domain of function than do st a ndard diagnostic tests, the VADL will augment these t est s during initia l evalua tion and may be u eful for assessing posttreatment change.