Study Brenner (1970): study US 1960
- Public
- Highschool pupils, New York State, USA, 1960
- Sample
- Respondents
- N = 5204
- Non Response
- 1%
- Assessment
- Questionnaire: paper
Correlate
- Authors's Label
- Time spent on extra-curricular activities
- Our Classification
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-
- Operationalization
- Open-ended direct question: 0 / 1-4 / 5 hours or more in a average week.