University of Tokyo

Survey Number 0761
Survey Title Social Stratification and Social Mobility Survey, 1975
Depositor 2015 SSM Survey Management Committee
Restriction of Use For detailed information, please refer to 'For Data Users' at SSJDA website.

- Apply to SSJDA. SSJDA's approval required.
Educational Purpose Available for both research and instructional purposes.
Period of Data Use Permission One year
Access to Datasets Download
SSJDA Data Analysis Not available
Summary The nationwide survey on Social Stratification and Social Mobility, also known as the SSM Survey, is one of the most traditional large-scale social surveys in Japan, and it has been carried out every ten years since the first survey in 1955 (by The Japan Sociological Society).

This 1975 survey is the third and is conducted by the SSM National Survey Committee. This survey consists of two parts: Survey A: Social Stratification and Mobility and Survey B: Occupational Prestige.

SSJ Data Archive offers data of Survey A.
Data Type quantitative research
quantitative research: micro data
Universe Males aged 20 to 69 years
Unit of Observation Individual
Sample Size
Sample size Valid responses (Response rate)
[Survey A] 4,001 2,724 (68.1% )
(cf. [Survey B] 1,800 1,296 (72.0%))
Date of Collection 1975-10-15 ~ 1975-11-30
1975/10/15 – 11/30
Time Period 1975 ~ 1975
Spatial Unit Japan
Sampling Procedure Probability: Systematic random
Probability: Stratified
Probability: Multistage
303 sites in Japan were extracted using multi-stage stratified sampling, with 20 subjects systematically selected per site using voter registration list. Then, the sample was divided into Survey A and Survey B at the ratio of 2:1 for each site.
Mode of Data Collection Face-to-face interview method
Investigator 1975 SSM National Survey Committee, Survey carried out by Public Opinion Research Center
DOI 10.34500/SSJDA.0761
Sponsors (Funds)
Related Publications (by the Investigator) Please refer to the abstract in Japanese.
Related Publications (based on Secondary Analysis) List of related publications (based on Secondary Analysis)
Documentation [Questionnaire]
Major Survey Items <Note: (*) represents (employment-related status, industry, occupation, position title, number of employees>

[Survey A]
- Age
- Place of residence, number of siblings, birth order, living conditions around 15 years old
- Highest level of educational attainment, graduated/dropped out, etc.
- Current occupation
- (*), whether having side jobs or not
- Employment history
- (*), age at the time of employment
- Occupation desired when respondent was in the final year of compulsory education
- Level of education desired when respondent was in the final year of compulsory education
- Social character
- Level of satisfaction
- Job description, place of work, income, highest level of educational attainment, living in general
- Father’s highest level of educational attainment
- Father’s occupation when respondent was 15 years old, father’s occupation at the time of first employment, father’s main occupation
- (*), mode of farming
- Mother’s highest level of educational attainment
- Marital status, number of family members, number of children
- Occupation of wife’s father
- (*), mode of farming
- View on changing jobs
- Criteria for desirability of work
- Criteria for career advancement
- Stratum identification (5 levels), class identification (3 levels)
- Leisure life, level of satisfaction
- Degree of socialization, level of satisfaction
- Ability to speak out/ability to influence, level of satisfaction
- Supporting political party, age when respondent began supporting the party, changes in party preferences
- Whether or not respondent had supported a political party in the past, age when respondent was supporting the party, party respondent supported, party respondent likes
- Political party father supported when respondent was around 15 years old
- Living conditions
- Property held
- Household income, personal income
Date of Release 2011/08/31
Topics in CESSDA Click here for details

Equality, inequality and social exclusion
Social and occupational mobility
Social behaviour and attitudes
Topics in SSJDA Society/Culture
Version 1 : 2011-08-31
Notes for Users Variable and value labels are written in Japanese.