Study Janz et al. (2001): study US Michigan 1996

Public

Medical Patients, Michigan, United States, followed 1 year, 199?

Survey name

Unnamed study

Sample

Respondents

N = 570

Non Response

52%

Assessment

Interview: Computer Assisted Telephone Interview (CATI)

Correlate

Authors's Label

Earlier quality of life

Our Classification

Remarks

Assessed at T1 and T2: 12 months difference

Operationalization

"How has the overall quality of your life been during the past 4 weeks - that is, how have things been going foor you lately?"
Ratings from 1="not well at all" to 5="very well"

1 Same or better
0 Deteriorated

Observed Relation with Happiness