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Correlational findings

Study Bakker & VandeBerg (1974): study NL 1968

Public:
20-65 aged, general public, The Netherlands, 1968
Sample:
Respondents:
N = 1552
Non Response:
34% refusal and unattainable.
Assessment:
Interview: face-to-face
Structured interview

Correlate

Authors's label
Amount of sleep
Our Classification
Operationalization
Difference between the time one usually goes to sleep and the time one usually awakes.

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-HP-g-sq-ol-7-a G = ±.0 ns