Mathematical Ability and Socio-Economic Background: IRT Modeling to Estimate Genotype by Environment Interaction
نویسندگان
چکیده
منابع مشابه
Mathematical Ability and Socio-Economic Background: IRT Modeling to Estimate Genotype by Environment Interaction
Genotype by environment interaction in behavioral traits may be assessed by estimating the proportion of variance that is explained by genetic and environmental influences conditional on a measured moderating variable, such as a known environmental exposure. Behavioral traits of interest are often measured by questionnaires and analyzed as sum scores on the items. However, statistical results o...
متن کاملMathematical Ability and Socio-economic Background: IRT Modeling to Estimate Genotype by Environment Interaction: Supplementary material
We have an intercept β0, a main effect of the measured covariate Mij , β1, a main effect of the unmeasured genotypic value Aij , β2, an interaction effect of the measured covariate and the genotypic value, β3, and a residual term with variance e. This model can be extended with a main effect of the shared environment, β4Cij , plus an additional interaction effect, β5CijMij , but for our purpose...
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Historically in plant breeding a large number of statistical models has been developed and used for studying genotype × environment interaction. These models have helped plant breeders to assess the stability of economically important traits and to predict the performance of newly developed genotypes evaluated under varying environmental conditions. In the last decade, the use of relatively low...
متن کاملThe statistical analysis of multi-environment data: modeling genotype-by-environment interaction and its genetic basis
Genotype-by-environment interaction (GEI) is an important phenomenon in plant breeding. This paper presents a series of models for describing, exploring, understanding, and predicting GEI. All models depart from a two-way table of genotype by environment means. First, a series of descriptive and explorative models/approaches are presented: Finlay-Wilkinson model, AMMI model, GGE biplot. All of ...
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E-learning provides a convenient and efficient way for learning and enriching people’s lives. But there is no appropriate way to estimate and diagnose people when they learning with e-learning environment/system. For learning ability estimation issue, Item Response Theory which plays an important role in modern mental test theory is applied. Besides, K-means clustering method is also applied to...
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ژورنال
عنوان ژورنال: Twin Research and Human Genetics
سال: 2017
ISSN: 1832-4274,1839-2628
DOI: 10.1017/thg.2017.59