Bell Curve

xivList of IllustrationsList of IllusmationsxvControlling for IQ cuts the ethnic disparity in home environments byhalf for blacks and more than 60 percent for Latinos 335Controlling for IQ more than eliminates overall ethnic differences inthe developmental indexes 336Based on national norms, high percentages of minority children remainin the bottom decile of IQ after controlling for the mother's IQ 337Controlling for IQ cuts the black-white difference in incarceration byalmost three-quarters 338The MCV Index, before and after controlling for IQ 339The higher the education, the fewer the babies 349Fertility falls as educational level rises in similar fashion for black, white,and Latino women 353The swing in social problems that can result from small shifts in themean IQ of a population 368Fortyeight percent of the poor in 1989 came from the bottom 20 percentin intelligence 370Two-thirds of high school dropouts came from the hottom 20 percentin intelligence 372Seventeen percent of the men who worked year-round in 1989 were inthe bottom 20 percent of intelligence 373Sixty-four percent of able-bodied lnen who did not work in 1989 werein the bottom 20 percent of intelligence 374Twentymine percent of able-bodied men who were temporarily out ofwork in 1989 were in the bottom 20 percent of intelligence 375Sixty-two percent of men ever interviewed in jail or prison came fromthe bottom 20 percent of intelligence 376Forty-five percent of women who ever received welfare were in the hottom20 percent of intelligence 377Fifty-seven percent of chronic welfare recipients were in the bottom 20percent of intelligence 377Fifty-two percent of illegitimate children were born to mothers in thebottom 20 percent of intelligence 378Thirty-one percent of children living with divorced or separatecl mothershad mothers with IQs in the bottom 20 percent of intelligence 379Forty-five percent of low-birth-weight babies had mothers in the bottom20 percent of intelligence 381Fifty-six percent of all children from the bottom decile in homeenvironment were born to mothers in the bottom 20 percent of intelligence382Sixty-three percent of children who lived in poverty throughoutthe first three years had mothers in the bottom 20 percent of intelligence383Seventy-two percent of children in the bottom decile of IQ had mothersin the bottom 20 percent of intelligence 384Ten percent of people scoring "yes" on the Middle Class Values indexwere in the bottom 20 percent of intelligence 385The diminishing returns to coaching for the SAT 401IQ gains attributable to the Consortium preschool projects 406A half-century of Iowa tests: Improvement as the norm, the slump as atwelve-year aberration 424Forty-one years of SAT scores 425, Atnong the most gifted students, there is good news about math, badnews about verbal 429At selective schools, the median black edge was 180 SAT points, whileAsians faced a median penalty of 30 points 452When aggressive affirmative action began, black college enrollmentsurged for a decade 469The student's-eye-view of cognitive ability 472The uncertain effects of affirmative action in the workplace 485A revised view of equal employment opportunity after correcting forethnic differences in the IQ distributions 490In the 1970s, economic growth began to enlarge the affluent class 5 16