Survey of Program Dynamics (SPD) First Longitudinal File: Data Years 1992, 1993, 1994, 1996, and 1997 (ICPSR 3315)

Published: Feb 15, 2002

Principal Investigator(s):
United States Department of Commerce. Bureau of the Census


Version V1

The Survey of Program Dynamics (SPD) First Longitudinal File is a fully edited file that provides socioeconomic data for the calendar years 1992, 1993, 1994, 1996, and 1997. It is intended for longitudinal analyses of the effects of welfare reform on individuals, families, and households. The file can be linked to the SPD 1998 (ICPSR 2917), the SPD 1997 Bridge (ICPSR 2797), and the SIPP panel files for 1992 (ICPSR 6429) and 1993 (ICPSR 6886). The file contains basic demographic, economic, and social characteristics data for each member of the household for four or five years depending on the panel. The 1992 panel contains data for 1992, 1993, 1994, 1996, and 1997. The 1993 panel contains data for 1993, 1994, 1996, and 1997. The subject matter is described as follows: demographic data (age, sex, race, ethnic origin, marital status, household relationship, education, and veteran status), economic data (work experience, employment status, occupation, industry, weeks worked and hours per week worked, total income, and income components), income data (income from jobs, net income from business, farm or rent, pensions, dividends, interest, and Social Security payments), and data covering noncash income sources (food stamps, the school lunch program, employer-provided group health insurance plan, employer-provided pension plans, Medicaid, Medicare, CHAMPUS or military health care, and energy assistance). The file contains codes for 41 individual states, plus the District of Columbia. However, the sample is not designed to produce state estimates. The SPD sample in the nine remaining states is identified in three groups for confidentiality reasons. The three groups are as follows: Maine and Vermont, Iowa, North Dakota, and South Dakota, and Alaska, Idaho, Montana, and Wyoming.

United States Department of Commerce. Bureau of the Census. Survey of Program Dynamics (SPD) First Longitudinal File:  Data Years 1992, 1993, 1994, 1996, and 1997 . Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2002-02-15.

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1992 -- 1998

The database dictionary is provided as an ASCII text file, and the codebooks are provided by the data producer as Portable Document Format (PDF) files. The PDF file format was developed by Adobe Systems Incorporated and can be accessed using PDF reader software, such as the Adobe Acrobat Reader. Information on how to obtain a copy of the Acrobat Reader is provided on the ICPSR Web site.

The SURVEY OF PROGRAM DYNAMICS (SPD), 1997: BRIDGE SURVEY (ICPSR 2797) interviewed approximately 29,619 households from retired 1992 and 1993 Survey of Income and Program Participation (SIPP) panels, which were scientifically selected on the basis of area of residence to represent the nation as a whole. For SURVEY OF PROGRAM DYNAMICS (SPD), 1998 PUBLIC USE FILE (ICPSR 2917), from the households interviewed in 1997, a subsample of 19,129 households was selected for the continuing sample. Low-income households and households with children were selected with certainty or near certainty. Middle- and high-income households without children had a 1-in-4 chance of being selected for the sample.

The universe consists of people who resided in the United States, except people living in institutions such as prisons and nursing homes or entire military households, in March 1992 and/or March 1993. The universe is represented by original sample persons from the 1992 and 1993 Survey of Income and Program Participation (SIPP) panels, except those who were subsampled out because of cost constraints or left the universe before the 1998 interview.

personal interviews

survey data




  • Data in this collection are available only to users at ICPSR member institutions.

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