This document provides the testimony of Lois-ellin Datta, Associate Director of the United States General Accounting Office, before the House Subcommittee on Census and Population, on the evaluation of poverty indicators. Many of the concerns raised about the Census Bureau's experimental valuation methods can be systematically assessed, and the magnitude and direction of their influence can be empirically determined. Experimental valuation methods can reclassify or misclassify individuals considered to be in or out of poverty. The Census Bureau's publications do not give adequate warning of the magnitude of differences in poverty estimates resulting from conceptual, operational, and computational concerns with the valuation of noncash benefits. More work needs to be done to improve how we measure poverty in the United States. Data are presented on a table. An appendix identifies 23 issues related to measuring poverty and the value of noncash benefits, 32 conceptual concerns, 27 operational concerns, and 7 computational concerns. (BJV)