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On the application of queuing theory for analysis of twin data

Published online by Cambridge University Press:  21 February 2012

Lev S Kuravsky  and
Sergey B Malykh
Lev S Kuravsky
Affiliation:
Moscow City Institute of Psychology and Education.
Sergey B Malykh*
Affiliation:
Moscow City Institute of Psychology and Education; Psychological Institute of Russian Academy of Education, Moscow, Russia. [email protected]
*
*Correspondence: S Malykh, Psychological Institute of Russian Academy of Education, 9‘B’ Mokhovaya Street, 103009 Moscow, Russia. Tel: + 7 (095) 349 1886; + 7 (095) 202 9363; Fax: + 7 (095) 349 1886

Abstract

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A mathematical model based on queuing theory is used to study the dynamics of environmental influence on twin pairs. The model takes into consideration genetic factors and effects of non-shared environment. Histograms are exploited as base analysed characteristics, with the method of minimum chi-square yielding estimated characteristics. The proposed technique was applied to analysis of longitudinal data for MZ and DZ twins. It was shown that the same environment impact may yield different contributions to final variances of the IQ parameters under investigation. Magnitudes of these contributions depend on the genetic factor represented by distributions of an analysed parameter at the point of birth. Twin Research (2000) 3, 92–98.

Keywords

twinstwin developmentlongitudinal researchgeneticsenvironmentqueuing theory
Type
Articles
Information
Twin Research and Human Genetics , Volume 3 , Issue 2 , 01 April 2000 , pp. 92 - 98
Copyright
Copyright © Cambridge University Press 2000