The intelligence of heritability.
نویسندگان
چکیده
منابع مشابه
The Intelligence of Heritability
The influences of heredity and environment on behaviour are sometimes quantified as a heritability ratio, which assigns a percentage of variation in test scores to variation in the genotypes of individuals. There are compelling reasons, both biological and statistical, to doubt the validity of the common practice of partitioning variance in this manner. This paper outlines the conceptual founda...
متن کاملHeritability of Intelligence
Intelligence has been studied and measured for about 100 years. During that time researchers initially made casual observations that intelligence was substantially heritable, but they did not have enough data nor the appropriate methodology to quantify heritability. It was not pursued as an important focus of research until the end of the 60s. During the 60s, it was commonly believed (even by a...
متن کاملHeritability lost; intelligence found
Probably nothing makes human beings more different from other species—and from one another— than their intelligence. The subject is of profound general interest—what the brain is for and how it works, the distinctiveness of the human mind, what makes us individual and human—yet delivers so little. Human intelligence remains poorly defined and characterized, even among those who most study it. R...
متن کاملTwin Studies , Heritability , and Intelligence Letters from
Unraveling the sources of phenotypic variability for human behavioral traits has been a notoriously elusive goal. Attempts to determine the influence of genes on traits such as general cognition are frustrated by the fact that we know little about how genes and environment combine to shape a developing individual. Although this influence may be quantified in a number of ways, we will use herita...
متن کاملHeritability estimates of intelligence in twins: effect of chorion type.
This study investigates the basic assumption of homogeneity of monozygotic (MZ) twins: are there differences according to the timing of the zygotic splitting, early in dichorionic (DC) and later in monochorionic (MC) pairs? We assessed the IQ of 451 same-sexed twin pairs of known zygosity and chorion type with the Wechsler Intelligence Scale for Children-Revised (WISC-R). The variances of withi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Canadian Psychology/Psychologie canadienne
سال: 1994
ISSN: 1878-7304,0708-5591
DOI: 10.1037/0708-5591.35.3.244