阿德莱德心理学assignment代写 智力

2020-07-23 03:34

阿德莱德心理学assignment代写 智力
The extent to which intelligence is determined by one’s genes and environment is a rather debatable topic, as there are studies that prove that both factors play a significant role. Heritability, “the proportion of observed variation in a particular trait that can be attributed to inherited genetic factors in contrast to environmental ones” (Merriam-Webster’s collegiate dictionary, 1999), can be used to determine the role that genetics and environment play in determining an individual’s intellectual aptitude. Phenotypic traits are expressed by genes, which are a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring. Environment is seperate from of one’s genes, as it is “the complex of physical, chemical, and biotic factors that act upon an organism or an ecological community and ultimately determine its form and survival” (Merriam-Webster’s collegiate dictionary, 1999). Environmental and genetic factors may go hand in hand as one’s intelligence may not be dependent not on one of them, but both. Intelligence is the ability to acquire and apply knowledge and skills, and is often expressed as IQ (intellectual quotient). IQ heritability is the portion of a population’s IQ variability attributable to the effects of genes (Devlin). After investigating IQ heritability for almost a century, it has been discovered that covariance between relatives may be due not only to genes, but also to shared environments. Covariance is the measure of the joint variability of two random variables. Throughout this essay, I will be analyzing different studies in order to come to a conclusion on how much intelligence is determined by one’s genetics and environment, and how these two factors affect each other in the process.

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