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

Smoking habits

Our Classification

Error Estimates

Correlation between self and other reports of smoking : r=+.87 p<0.0001) Test for difference in mean ns (t.=0.90)

Remarks

Only measured in wave 1

Operationalization

Self report on whether or not the subjects smokes cigarettes
0=no
1=yes

Observed Relation with Happiness