Reproduction and level of intelligence.
The study was conducted in a representative Swedish rural-urban population sample of 3,064 persons. The IQ factor was determined directly by a single well established procedure. No systematic association between IQ level and the mean number of children was found.
Nyström
S
S
Department of Environmental Hygiene, Göteborg University, Sweden.
Bygren
L O
LO
Vining
D R
DR
D000328:Adult; D000367:Age Factors; D000368:Aged; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007360:Intelligence; D008297:Male; D008875:Middle Aged; D012098:Reproduction; D012424:Rural Population; D012737:Sex Factors; D012923:Social Class; D014505:Urban Population