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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 & Pencil Interview (PAPI)
Mailed questionnaire

Correlate

Authors's Label
Sleep disturbances
Our Classification
Error Estimates
Correlation between self and other reports (only spouses): N=803, r=+.53, p<.0001) For the other-reporters, only spouses or "significant" others were asked to complere their items in order to ensure that the reporters had sufficient knowledge about the target's sleep quality. Test for difference in mean ns (t.=-1.71)
Remarks
Only measured in wave 1.
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-*-*-a r = +.36 p < .0001