Jopp & Rott (2006): study DE Heidelberg 2001
Publication
- Author(s):
 - Jopp, D.; Rott, C.
 - Title:
 - Adaptation in Very Old Age: Exploring the Role of Resources, Beliefs and Attitudes for Centenarians' Happiness.
 - Source:
 - Psychology and Aging, 2006, Vol. 21, 266 - 280
 
Investigation
- Public
 - 99+ aged, Heidelberg, Germany , 2001
 - Survey name
 - DE-Heidelberg Centenarian Study
 - Sample
 - Non-probability purposive sample
 - Respondents
 - N = 249
 - Non Response
 - 63%
 - Assessment
 - Interview: face-to-face
 
Happiness Measure(s) and Distributional Findings
- Full text:
 - 
            Self report on single question:
… feel happy most of the time.. (full text not reported)
1 yes
0 no - Classification:
 - M-TH-?-sq-v-2-a
 - Author's label:
 - Happiness
 - Remarks:
 - All respondents that were not able to answer self-report questions because of severe cognitive decline were excluded from the sample.
The publication reports an analysis using a ' happiness factor' consisting of 2 more measures which do not fit the criteria for inclusion in the WDH. Hence the results obtained with that measure are not included here. - Page in publication:
 - 270-272
 - Observed distribution
 - Frequencies
 - 1: 28.6%, 2: 71.4% (total 100%)
 - Summary Statistics
 - On original range 0 - 1 On range 0-10
 - Mean:
 - 0.71 -
 - SD:
 - 0.46 -