Study Mussen et al. (1980): study US 1928
- Public
- Mothers, followed from age 30 to 70, Berkeley USA, 1928-68
- Sample
- Respondents
- N = 53
- Non Response
- Assessment
-
Multiple assesment methods
Observation and interviews at age 30 and age 70
Correlate
- Authors's Label
- Unworrisome; satisfied; self-assured
- Our Classification
-
-
- Operationalization
- Personality factor that appears in an analysis of ratings by two interviewers on 71 personality-social characteristics.
This factor appeared in young adulthood (T1: age 30) as well as in old age (T2: age 70). Correlation over this 40-year-period is +.34 .