Study Ludwig (1971): study US 1966
- Female students, undergraduates, University of Wisconsin, USA, 196?
- N = 72
- Non Response
- 81%; 61% refusal, 5% eliminated on basis of screening data, 15% miscellaneous re
Multiple assesment methods
Structured questionnaires, tests; and interview.
- Authors's Label
- Our Classification
- Repeated closed question on to what extent one feels like doing calm and tranquil things during the day, rated each night on a 4-point scale for at least 20 days.