Spinath, F. M., Angleitner, A., Borkenau, P., Riemann, P. & Wolf, H. (im
Druck). German Observational
Study of Adult Twins: A multimodal investigation of personality, temperament and
cognitive ability. Twin Research.
The German Observational Study of Adult Twins (GOSAT) is the
largest population-based observational twin study in Germany to date.
Embedded in the Bielefeld Longitudinal Study of Adult Twins (BiLSAT), it
addresses the etiology of personality, temperament and cognitive ability in a
sample of 300 monozygotic (MZ) and dizygotic (DZ) adult twin pairs between 18
and 70 years of age. A major aim of
the GOSAT lies in the utilization of different modes of measurement, i.e., peer
reports and observational data, in addition to
self-reports which have been used predominantly in past behavioral genetic
research on personality and temperament in adults. Participants completed a full day assessment at the
University of Bielefeld including videotaped social interactions and
presentations, psychometric intelligence tests and computerized elementary
cognitive tasks as well as objective measures and unobtrusive behavior counts.
The research design of the GOSAT was devised to reduce the potential
impact of systematic rater bias on estimates of genetic and environmental
influences to a minimum. In combination with extensive self- and peer report data on
key personality and personality related dimensions available from the BiLSAT,
the GOSAT provides a rich dataset, which currently includes DNA samples from 80%
of its participants.
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