Study Bortner & Hultsch (1970): study US 1959
- Public
- 21+ aged, general public, USA, 1959
- Sample
- Respondents
- N = 1301
- Non Response
- 9%
- Assessment
-
Interview: face-to-face
Structured interview
Correlate
- Authors's Label
- Educational level
- Our Classification
-
-
- Operationalization
- None to 4 years / 5-7 years / 8 years / high school incomplete / technical trade or business school / college incomplete / college complete