作者: J. C. Loehlin
DOI: 10.1007/BF00290207
关键词: Metabolic disease 、 Intelligence quotient 、 Family member 、 Demography 、 Socioeconomic status 、 Family resemblance 、 Biology
摘要: At least a half-dozen adoption studies of intelligence or related traits (such as socioeconomic status) have been reported in the past three four years. They yielded somewhat divergent findings, but majority continue to provide evidence substantial genetic contribution family resemblance IQ. The recent generally lower overall correlations among members than were obtained classical studies. restricted IQ range samples may be responsible for this difference.