Heeg, Dagmar (2019) Evaluation of a General Bayesian Method using the Cholesky Decomposition to model the transmission of intelligence. Research Project, Science Education and Communication.
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Abstract
The classical twin design has proven to be a powerful method in order to study the transmission of intelligence from parent to child. However, it comes with a few un- realistic assumptions such as random mating. In this paper the classical twin design is extended with cultural transmission, phenotypic assortment, social homogamy, the dominance effect or a combination of these extensions. In order to avoid analyzing sum scores, the Rasch Model is used as a measurement model and both the genetic and measurement model are put in a Bayesian framework, in order to estimate both simultaneously. A Cholesky decomposition is applied to make the models more easy to access and finally a Metropolis-Hasting algorithm was implemented to keep the model transparent. Six different models are compared by calculating the DIC scores, to find the genetic model that represents the real-world data the best.
| Item Type: | Thesis (Research Project) |
|---|---|
| Supervisor name: | Grzegorczyk, M.A. |
| Degree programme: | Science Education and Communication |
| Thesis type: | Research Project |
| Language: | English |
| Date Deposited: | 20 Feb 2019 |
| Last Modified: | 04 Mar 2019 10:39 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/19182 |
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