Abstract: The cognitive evaluation of the two proposed versions of the disability questions for the 1998 Dress Rehearsal questionnaire consisted of twenty cognitive interviews. This evaluation consisted of interviewing people with disabilities, people who could report for a disabled household member, and people without disabilities. We also included both the parents of children with and without disabilities. Our resultant "disabled" population consisted of a wide range of physical and mental disabilities. We had respondents or household members with diabetes, epilepsy, multiple sclerosis, back injuries, heart disease, blindness, severe hearing impairments, severe learning disabilities, attention deficit disorder, brain damage, mental retardation, and obsessive-compulsive disorder. We had reports for children with cerebral palsy and attention deficit disorder. Interviews were conducted between August 17 and September 13, 1997. The following short report summarizes the highlights of our research. We will first outline some general findings across the two versions, then the main findings from each version of the disability questions, and finally our recommended revision. The disability questions used in the interviews are included as Attachments A and B.