; (2) the Secretary determines that the design and approach of the proposed evaluation is rigorous and is likely to yield information that is credible and will be useful to other States; and (3) unless waived by the Secretary, the State contributes to the cost of the evaluation, from non-Federal sources, an amount equal to at least 25 percent of the cost of the proposed evaluation. (e) Census Bureau research (1) The Bureau of the Census shall implement or enhance household surveys of program participation, in consultation with the Secretary and the Bureau of Labor Statistics and made available to interested parties, to allow for the assessment of the outcomes of continued welfare reform on the economic and child well-being of low-income families with children, including those who received assistance or services from a State program funded under this part or any other State program funded with qualified State expenditures (as defined in section 409(a)(7)(B)(i)). The content of the surveys should include such information as may be necessary to examine the issues of unmarried childbearing, marriage, welfare dependency and compliance with work requirements, the beginning and ending of spells of assistance, work, earnings and employment stability, and the well-being of children. (2) To carry out the activities specified in paragraph (1), the Bureau of the Census, the Secretary, and the Bureau of Labor Statistics shall consider ways to improve the surveys and data derived from the surveys to— (A) address under reporting of the receipt of means-tested benefits and tax benefits for low-income individuals and families; (B) increase understanding of poverty spells and long-term poverty, including by facilitating the matching of information to better understand intergenerational poverty; (C) generate a better geographical understanding of poverty such as through State-based estimates and measures of neighborhood poverty