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Correlational findings

Study Lepper (1998): study US California 1993

Public:
Retirees, Southern California, USA, followed 9 months199?
Sample:
Respondents:
N = 971
Non Response:
Assessment:
Questionnaire: paper
Mailed questionnaire

Correlate

Authors's label
Sleep disturbances
Our Classification
Operationalization
Self report on 3 questions:
How much of the time during the previous weeks
a enough sleep was obtained in order to feel rested upon waking
b had trouble falling asleep
c got the amount of sleep needed

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks A-BB-cm-mq-v-2-a r = +.31 p < .0001 O-HL---mq-v-16-a r = +.35 p < .0001 M-AO---mqr-*-0-a r = +.36 p < .0001