Indonesia Family Life Survey (IFLS)

The Indonesian Family Life Survey (IFLS) is an on-going longitudinal survey in Indonesia conducted by RAND, Survey Meter and the Center for Population and Policy Studies, University of Gadjah Mada. The IFLS is designed to provide data for studying behaviors and outcomes. The survey contains a wealth of information collected at the individual and household levels, including multiple indicators of economic and non-economic well-being.

In addition to individual- and household-level information, IFLS provides detailed information from the communities in which IFLS households are located and from the facilities that serve residents of those communities. These data cover aspects of the physical and social environment, infrastructure, employment opportunities, food prices, access to health and educational facilities, and the quality and prices of services available at those facilities.

Data Collection

Sample Sizes and Completion Rates
IFLS1 1993 (Baseline) Fielded between September 1993 and February 1994
7,200 households, 16,300 individual interviews
IFLS2 1997 Fielded between August 1997 and December 1997
7,500 households, 25,000 individual interviews
94% completion rate of living IFLS1 households
IFLS3 2000 Fielded between June 2000 and October 2000
10,400 households, 31,000 individual interviews
95% completion rate of living IFLS1,2 and 2+households
95.3 completion rate of original IFLS households
IFLS4 2007

Fielded between November 2007 and April 2008
13,500 households, 43,500 individual interviews
91.5% completion of living IFLS1, 2, 2+, and 3 households
93.6% completion of original IFLS households

C-reactive protein assay data and documentation released in 2013

IFLS4 2014-15

Fielded 2014-2015

  • Additional cognition modules
  • Personality module (Big Five Index)
  • Subjective well-being questions on positive and negative affect
  • Sleep disturbance and sleep impairment
  • Self Reported Health Measures

    Existing Household Modules from Previous IFLS waves

    New Household Modules in IFLS-5

    Existing Community Modules From Previous IFLS waves

    New Community Module in IFLS-5


    Biomarkers collected in IFLS include:


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