Longitudinal Study of Generations
The study objectives were:
- To track life-course trajectories of family intergenerational solidarity and conflict over three decades of adulthood, and across successive generations of family members;
- To identify how intergenerational solidarity and conflict influence the well-being of family members throughout the adult life-course and across successive generations;
- To chart the effects of socio-historical change on families, intergenerational relationships, and individual life-course development during the past three decades;
- To examine women’s roles and relationships in multigenerational families over 30 years of rapid change in the social trajectories of women’s lives.
- Start Year
- 1971
- End Year
- 2000
| Investigators | Contacts |
|---|---|
|
|
Design
- Study design
- Cohort
- Follow Up
-
The baseline survey took place in 1971. Follow-up mailed surveys were administered every 3 years between 1984 and 2000.
Marker Paper
Bengtson, V. L. (1975). Generation and family effects in value socialization. American Sociological Review, 40, 358–371.
Recruitment
- Recruitment Target
-
- Families
Number of Participants
- Number of Participants
- 2,044
- Number of Participants with Biological Samples
- Supplementary Information
-
Wave 1: 2044 participants from 345 multigenerational families
Wave 2: 1331 participants
Wave 3: 1483 participants
Wave 4: 1734 participants
Wave 5: 1682 participants
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
Timeline
Populations
G1 consisted of the grandparents' generation, aged 60 to 75 years at wave 1 (born 1896-1911).
Selection Criteria
- Minimum age
-
60
- Maximum age
-
75
- Newborns
- Twins
- Countries
-
- United States of America
- Territory
-
The greater Los Angeles area.
- Other Criteria
-
Members had to have at least one grandchild between 16-26 years of age.
Recruitment
- Sources of recruitment
-
- Specific population
- Specific Population
-
- Members of an association
- Supplementary Information
-
Drawn randomly from members of a California health maintenance organization (HMO) in the greater Los Angeles area.
Number of Participants
- Number of Participants
- 516
- Number of Participants with Biological Samples
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
LSOG - Wave 1
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1971 | 1972 |
| 1 |
LSOG - Wave 2
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1984 | 1985 |
| 2 |
LSOG - Wave 3
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1988 | 1990 |
| 3 |
LSOG - Wave 4
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1991 | 1991 |
| 4 |
LSOG - Wave 5
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1994 | 1994 |
| 5 |
LSOG - Wave 6
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1997 | 1997 |
| 6 |
LSOG - Wave 7
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
2000 | 2000 |
G3 consisted of the grandchildrens' generation, aged 16 to 26 years at wave 1 (born 1945-1955).
Selection Criteria
- Minimum age
-
16
- Maximum age
-
26
- Newborns
- Twins
- Countries
-
- United States of America
- Other Criteria
-
Had to be the grandchild of a G1 participant.
Recruitment
- Sources of recruitment
-
- Specific population
- Specific Population
-
-
Other specific population :
Grandchildren of G1 cohort.
-
Other specific population :
Number of Participants
- Number of Participants
- 837
- Number of Participants with Biological Samples
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
LSOG - Wave 1
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1971 | 1972 |
| 1 |
LSOG - Wave 2
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1984 | 1985 |
| 2 |
LSOG - Wave 3
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1988 | 1990 |
| 3 |
LSOG - Wave 4
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1991 | 1991 |
| 4 |
LSOG - Wave 5
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1994 | 1994 |
| 5 |
LSOG - Wave 6
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1997 | 1997 |
| 6 |
LSOG - Wave 7
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
2000 | 2000 |
G2 consisted of the parents' generation, aged 40 to 55 years at wave 1 (born 1916-1931).
Selection Criteria
- Minimum age
-
40
- Maximum age
-
55
- Newborns
- Twins
- Countries
-
- United States of America
- Other Criteria
-
Had to be the child of a G1 participant.
Recruitment
- Sources of recruitment
-
- Specific population
- Specific Population
-
-
Other specific population :
Children of G1 cohort.
-
Other specific population :
Number of Participants
- Number of Participants
- 701
- Number of Participants with Biological Samples
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
LSOG - Wave 1
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1971 | 1972 |
| 1 |
LSOG - Wave 2
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1984 | 1985 |
| 2 |
LSOG - Wave 3
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1988 | 1990 |
| 3 |
LSOG - Wave 4
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1991 | 1991 |
| 4 |
LSOG - Wave 5
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1994 | 1994 |
| 5 |
LSOG - Wave 6
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1997 | 1997 |
| 6 |
LSOG - Wave 7
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
2000 | 2000 |
G4 consisted of the great grandchildrens' generation, added in 1991 to the original three cohorts, and aged 16 to 26 years (born 1965-1975).
Selection Criteria
- Minimum age
-
16
- Maximum age
-
26
- Newborns
- Twins
- Countries
-
- United States of America
- Other Criteria
-
Had to be the great grandchild of a G1 participant.
Recruitment
- Sources of recruitment
-
- Specific population
- Specific Population
-
-
Other specific population :
Great grandchildren of G1 cohort.
-
Other specific population :
Number of Participants
- Number of Participants
- 198
- Number of Participants with Biological Samples
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
LSOG - Wave 4
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1991 | 1991 |
| 1 |
LSOG - Wave 5
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1994 | 1994 |
| 2 |
LSOG - Wave 6
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
1997 | 1997 |
| 3 |
LSOG - Wave 7
|
Attitudes and opinions were measured in a self-administered, mailed questionnaire on a wide range of topics: social attitudes, educational and occupational attainment, family formation, and ... |
2000 | 2000 |
Classifications
- Socio-demographic and economic characteristics
- Lifestyle and behaviours
- Birth, pregnancy and reproductive health history
- Perception of health, quality of life, development and functional limitations
- Diseases
- Symptoms and signs
- Medication and supplements
- Non-pharmacological interventions
- Health and community care services utilization
- Death
- Physical measures and assessments
- Laboratory measures
- Cognition, personality and psychological measures and assessments
- Life events, life plans, beliefs and values
- Preschool, school and work life
- Social environment and relationships
- Physical environment
- Administrative information
- Cognitive functioning
- Personality
- Psychological distress and emotions
- Other psychological measures and assessments
- Life events
- Beliefs and values
- Perception of health
- Quality of life
- Life course development
- Functional limitations
- Other perception of health, quality of life and functional limitation-related information
Socio-demographic and economic characteristics
Lifestyle and behaviours
Birth, pregnancy and reproductive health history
Perception of health, quality of life, development and functional limitations
Diseases
Symptoms and signs
Non-pharmacological interventions
Health and community care services utilization
Death
Physical measures and assessments
Cognition, personality and psychological measures and assessments
Life events, life plans, beliefs and values
Preschool, school and work life
Social environment and relationships
Physical environment
Administrative information
Cognitive functioning
Personality
Psychological distress and emotions
Life events
Beliefs and values
Functional limitations