National Longitudinal Surveys (United States): Home

Comparing NLS, PSID and SIPP

National Longitudinal Surveys (NLS) Panel Study of Income Dynamics (PSID) Survey of Income & Program Participation (SIPP)
Starting date 1966 1968 1984 *
Sample National, including military 1) National, 2) households at or below 150% poverty line, Latino National, noninstitutionalized
Periodicity of interviews Some biennial, some annual Annual Monthly
Survey design Longitudinal Longitudinal Multistage (panels of 2 1/2 to 4 years duration)
Labor force information, employment Y Y Y
Job training Y Y
Retirement decisions Y Y
Income sources Y Y
Household earnings Y
Pensions Y Y
Government assistance Y (Welfare recipiency) Y (Public assistance) Y (Benefits programs)
Schooling, education Y Y Y
Marriage Y Y Y
Fertility Y Y
Child care Y Y Y
Child development Y
Food expenditures Y
Transportation Y
Car ownership Y
Car and home maintenance Y
Health Y
Medical expenditures Y
Private health insurance Y
Drug & alcohol use Y
December 3, 1999 *Predecessor program (1977-1981) was Income Survey Development Program (ISDP)