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Suggested Citation:"Demographic Characteristics." National Research Council. 1998. Providing National Statistics on Health and Social Welfare Programs in an Era of Change: Summary of a Workshop. Washington, DC: The National Academies Press. doi: 10.17226/6097.
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Page 51

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APPENDIX C 51 THE SURVEY OF INCOME AND PROGRAM PARTICIPATION Design The Survey of Income and Program Participation (SIPP) is a rotating panel survey of samples of household members interviewed at 4-month intervals. Beginning in 1983, the survey followed adult members of initially- sampled households (sample sizes ranged from 12,500 to 23,600 households) for 32 months; a new panel was introduced each February. Data were also obtained for children living with adult sample members and for adults and children who joined the household of an adult sample member. Under a redesign introduced in 1996, the survey is following samples of adults and children in about 37,000 initially-sampled households for 48 months; a new panel will be introduced every 4 years. About 8-9 percent of eligible households did not respond in Wave 1 of SIPP for the most recent three panels (1992, 1993, and 1996), and another 5-6 percent did not respond at Wave 2; by Wave 4, cumulative sample loss was 18-20 percent for these three panels. The SIPP sample is not designed for state representation. The sample for the 1996 panel overrepresents household addresses identified as low income in the 1990 decennial census. The design of SIPP may change if the survey is made the source of official poverty statistics, as recommended by a National Research Council panel. The SIPP core questionnaire covers demographic characteristics; work experience, earnings, program participation, and transfer income by month for the 4 months preceding the interview; and asset income for the 4- month period. In addition, each interview wave includes one or more topical modules, which cover a variety of topics. (Some modules are repeated in each panel; others are modified to respond to current policy needs.) Content Changes Some changes were recently made to the content of the 1996 SIPP panel to respond to legislated changes in social welfare programs. Beginning in Wave 4 (administered in summer 1997), references to AFDC were changed to cash assistance. Also, the variable topical module in Wave 8 (to be administered in fall 1998) will be devoted exclusively to measuring participation and benefits under welfare reform, recognizing the potential for an increase in the amount and type of in-kind benefits. Content (Core, 1996 Panel) Demographic Characteristics Age Sex Race Origin or descent Relationship to reference person For children, whether biological, step, foster, or adopted Marital status Parent (if in household) Veteran status and when served Educational attainment; school enrollment [Note: There are no questions on citizenship.]

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