National Family Research of Japan 2008 (ICPSR 36127)

Version Date: Oct 7, 2015

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Principal Investigator(s):
Akihide Inaba, Tokyo Metropolitan University

https://doi.org/10.3886/ICPSR36127.v2

Version V2

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Summary

The National Family Research of Japan (NFRJ) is a series of nationwide surveys of families selected by random sampling in Japan. It is organized by the National Family Research committee of the Japan Society of Family Sociology. The aims of the NFRJ are to provide data for further improvements of family research and to contribute to the accumulation of new knowledge in Japan. The NFRJ study group aims to describe and explain the changing individual attitudes and variations of experiences in regard to life events related to changes in families, and longitudinal variations of family groups recognized by individuals. National Family Research of Japan 2008 (NFRJ 2008) is the third survey in the NFRJ series. Most of the questions in NFRJ 2008 were taken from NFRJ 1998 and NFRJ 2003. However, the wording of some questions and the available responses were altered. NFRJ 2008 had three forms of questionnaire for separate age groups: younger (28-47 years), middle-aged (48-62 years), and older (63-72 years). Opinions were collected on marital quality, work and family, parenting, parent-child relationships, siblings relationships, and division of household labor. Additional topics include respondent relationships with siblings, in-laws, and parents, employment type, work environment, and work-life balance. Demographic information includes respondent age, gender, education level, income, and marriage and employment status.

Citation

Inaba, Akihide. National Family Research of Japan 2008. Inter-university Consortium for Political and Social Research [distributor], 2015-10-07. https://doi.org/10.3886/ICPSR36127.v2

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Funding

Japan Society for the Promotion of Science (18203030)

Subject Terms

Geographic Coverage

Smallest Geographic Unit

Prefecture

Distributor(s)

Inter-university Consortium for Political and Social Research
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Time Period(s)

2008

Date of Collection

2009-01 -- 2009-02

Data Collection Notes

  1. Additional information about the National Family Research of Japan can be found at the National Family Research of Japan Web site.

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Study Purpose

This project has two primary objectives: to periodically collect national representative data that is useful in research on Japanese families, and to make these data available for secondary use by scholars.

Sample

Stratified two-stage random sampling was used. Primary sampling units (Census tracts) were stratified into 108 by prefecture (47) and population size(3). The number of census tracts to be selected in each stratum was determined on the basis of the size of the target population (people aged 28 to 72). In total, 9400 individuals in 480 tracts were selected. The above tasks were carried out from November to December in 2008.

Time Method

Cross-sectional

Universe

Men and women ages 28-72 years old living in Japan.

Unit(s) of Observation

Individual

Data Type(s)

Mode of Data Collection

Response Rates

55.4 percent

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Original Release Date

2015-09-08

Version History

2018-02-15 The citation of this study may have changed due to the new version control system that has been implemented. The previous citation was:
  • Inaba, Akihide. National Family Research of Japan 2008. ICPSR36127-v2. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2015-09-08. http://doi.org/10.3886/ICPSR36127.v2

2015-10-07 The variable RKEN, which contains information on prefecture codes, has been removed from the data due to disclosure risk.

2015-09-08 ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Created online analysis version with question text.
  • Checked for undocumented or out-of-range codes.
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Weight

No weight variables are present in this collection.

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Notes