This paper shows that the measurement of hand grip strength provides a non-invasive and reliable objective health indicator for social science research and is easy to collect in general population surveys. Grip strength is not only a useful complement of self-reported indicators of health, but...

This paper examines the implication of the move to CAPI for data quality by analyzing the conversion from PAPI to CAPI of a subsample of the German Socio-Economic Panel (SOEP) which was done within an experimental design. The 2000 addresses for the sample E of SOEP were split into two subsamples...

Using data from the German Socio-Economic Panel Survey (SOEP), this paper assesses the relationship between life satisfaction and religious practice. The main new result here is longitudinal. It is shown that individuals who become more religious over time record long term gains in life...