Factor and simplex models for repeated measures: Application of two psychomotor measures of alcohol sensitivity in twins.
| Authors |
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| Publication date |
1989
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| Journal |
Behavior genetics
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| Volume | Issue number |
19
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| Pages (from-to) |
79-96
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| Organisations |
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Faculty of Social and Behavioural Sciences (FMG) - Psychology Research Institute (PsyRes)
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| Abstract |
Obtained data on arithmetic computation and motor coordination from 206 twin pairs (aged 18-34 yrs). Ss were measured before and 3 times after ingesting a standard dose of alcohol. The application of simplex models for the genetic analysis of covariance (ANCOVA) structures in a repeated-measures design is illustrated, and the results are compared with factor models for the 2 psychomotor measures. Analyses confirm the notion that there is a genetic variation affecting psychomotor performance that is switched on in the presence of alcohol.
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| Document type |
Article
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| Published at |
https://doi.org/10.1007/BF01065885
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