Study Ludwig (1970): study US 1965
- Public:
- University students, University of Wisconsin, USA, 196?
- Sample:
- Respondents:
- N = 45
- Non Response:
- Assessment:
-
Questionnaire: paper
Every night for 20 days.
Correlate
- Authors's Label
- Tranquility
- Our Classification
-
-
- Operationalization
- Repeated closed question on to what extent Ss felt like doing calm and tranquil things during the day, rated each night on q 4-point scale for at least 20 days.