The Center for Survey Methods Research conducted cognitive research as part of the development of the disability questions for the 1998 Dress Rehearsal. Two versions of the questions were tested: one was proposed by the Census Bureau and the other was proposed by an OMB interagency working group. The results showed that there were problems with both sets of questions. The problems with the OMB questions were more substantive while the problems sith the Census Bureau questions were related to format. The report contains a recommendation for the 1998 Dress Rehearsal that combines the advantages of both versions.