The Integration Of Biological Accounts Essay

2043 Words Dec 24th, 2016 9 Pages
The Integration of Biological Accounts
Sociologists have long recognized the possibility to incorporate genetics into accounts to explain the intergenerational mobility. Forty years ago, Eckland (1967) stated that although environmental components are relatively obvious, genetic factors are not ignorable for IQ performance. And since it was infeasible at that time to have data and methods to discern between hereditary and environmental components, researchers tended not to untwine the two (Duncan 1968). A sociological work using the method closer to the one used now was Scarr and Weigberg’s (1987) study on the IQ of adoptees and biological children. They report the strong effects of the biological parent’s IQ rather than the social parental IQ on the adoptees and thus suggest the genetic effects account a large portion of the effects of family background. However, their estimates were still crude since the biological parental IQ only played as a proxy for genes in the study. Interests in the issue was resurgent as quantitative genetics developed. Researchers began to collect twins and siblings’ data to analyze the social and biological influences on social mobility. Using data of U.S. male twins who were born between 1917 and 1927, economists Behrman and Taubman (1989) find that above 80 percent of the observed variation in schooling can be attributed to genetics than to the environment. Also, by implementing the ACE models, which decompose the total variance in the outcome…

Related Documents