GROWTH DEVELOPMENT CHILD
MEASUREMENT OF INTELLIGENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The studies are not reliable.
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The samples are not representative.
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It is not possible to really know if a twin is monozygotous or dizygotous
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It is difficult to find samples.
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Detailed explanation-1: -Which of the following is a limitation of twin studies? The samples are not representative. (Twins lead a very different life than the average child growing up. Therefore, they are not highly representative.
Detailed explanation-2: -A further limitation of the twin study design is that the separation of liability into distinct genetic and environmental components may be invalid if sizable gene-environment correlations or interactions exist.
Detailed explanation-3: -Limitations of twin studies Results from twin studies cannot be directly generalized to the general population, due to lack of randomization; in addition, they are different with regard to their developmental environment, as two fetuses growing simultaneously.
Detailed explanation-4: -Which of the following is true concerning “twin study” research finding? Identical twins have more similar IQ scores than fraternal twins.
Detailed explanation-5: -Twin studies are compelling, but they suffer from a common flaw: not only do identical twins share genes, but also they often share an environment that treats them similarly. Because of this, identical twins are not the perfect genetics–environment experiment.