The PSID began in 1968 with a nationally representative sample of over 18,000 individuals living in 5,000 families in the United States. Information on these individuals and their descendants has been obtained through various data collection efforts, which we call studies.

Main Interview
One person per family is interviewed on a regular basis. Between 1968 and 1997, interviews were conducted annually. Since then, interviews have been biennial. Information about each family member is collected, but much greater detail is obtained about the head and, if married/cohabitating, spouse or long-term cohabitor. Survey content changes to reflect evolving scientific and policy priorities, although many content areas are consistently measured since 1968. Information includes employment, income, wealth, expenditures, health, education, marriage, childbearing, philanthropy, and numerous other topics.
  Child Development Supplement
The Child Development Supplement (CDS) is a research component of the Panel Study of Income Dynamics (PSID), the world’s longest running nationally representative panel survey, with almost 50 years of data on the same families and their descendants. The CDS provides researchers with extensive data on children and their extended families with which to study the dynamic process of early human and social capital formation. The first CDS study included up to two children per household who were 0 to 12 years old in 1997, and followed those children over three waves, ending in 2007-08. The CDS 2014 includes all eligible children in PSID households born since 1997.
Transition into Adulthood Supplement
When children in the CDS cohort become 18 years of age, information is obtained about their circumstances through a telephone interview completed shortly after the Main Interview. This study, called Transition into Adulthood Supplement, has been implemented in 2005, and biennially thereafter. Information includes measures of time use, psychological functioning, marriage, family, responsibilities, employment and income, education and career goals, health, social environment, religiosity, and outlook on life.
  Disability and Use of Time
DUST collected information in 2009 and 2013 to investigate the connections among about disability, time use, and well-being for older adults. Heads and spouses in these couples were each interviewed twice about two randomly selected days-one week day and one weekend day. Information was obtained using time diaries about what respondents did, where they were, who did the activities with them, who else was there, how they felt, and for household and care-related activities, for whom the activity was carried out. Diaries also include more detailed measures of well-being for 3 randomly selected activities per diary. Information was also collected about the respondent’s health, functioning, well-being, and stylized time use and participation measures.