What this summary of and expansion upon behavior genetics
indicates is that, although parents may have a relatively
low IQ or suffer from serious mental vulnerabilities factors
that may place them in the category of the poor-their children
will not necessarily inherit these negative characteristics.
They may inherit them to a lesser degree or may simply inherit
a different configuration of characteristics altogether. Given
an appropriate enviromnent, such children can move out of
poverty, and as many do so as do not. Therefore, it is quite
unlikely that on the basis of genetic "inferiority"
alone, multiple generations within a family will remain trapped
in poverty. In fact, multiple generations of the same family
are snore likely to remain trapped in poverty because of environmental
rather than personal inferiority factors.
For instance, some people live in rural areas and small
towns that, for decades and even centuries, have experienced
little economic development, in part because their region
depends on a single industry with low wages (C.M. Duncan,
1996). Other rural communities are relatively isolated from
the rest of the country. Unless these people move away, all
members of their families will remain poor for several generations.
Moreover, this intergenerational poverty may contribute to
innate 18 but not hereditary intellectual deficits via malnutrition
of pregnant women and their small children -a phenomenon occurring
on a large scale in various parts of the world. Currently,
as inner cities become poorer and more socially isolated,
there is the reasonable fear that a greater proportion of
youth than before will remain locked in the same poverty they
were brought up in. This is because there are no opportunities
available at the educational and economic levels, and these
individuals are cut off from persons who could help them find
jobs. Their poverty has little to do with their genes.
Entire societies lack the means, the political will, or
even the physical environment to prosper, and 90 percent of
their populations may be poor, as described in Chapter 1.
It would certainly be foolish to conclude that 90 percent
of these societies' citizens are congenitally mentally delayed
or genetically inferior. Iraq, for instance, provides a recent
and drastic example of a country's rapid descent into poverty
among the general population. The sanctions imposed against
Iraq by the United Nations, and the fact that Iraqis are cheated
by a regime that builds palaces and rebuilds an expensive
army instead of feeding its people, have contributed to creating
a nation of indigents. It would certainly be preposterous
to conclude that Iraqis have suddenly lost their IQ and other
abilities and that their genes have deteriorated!
What is important to understand is that the development
of positive characteristics that are partly genetic, such
as a normal IQ and a prosocial personality, requires a favorable
environment (see Bronfenbrenner, 1996). An analogy is the
proverbial perfect seed falling into barren soil with no rainfall
and no fertilizer. Basically, a child's genetic endowment
is akin to a seed: it will flower only when there is adequate
nutrition, a minimum of social and affective stimulation,
opportunities to learn, and a reasonably safe environment.
In contrast, poor nutrition, lack of social and learning stimulation,
overcrowding, noise, pollution, detrimental media exposure,
and a high rate of dangerous incidents and illegal activities
in the neighborhood substantially diminish the chances that
a child's positive inheritance will be actualized. In fact,
such environments, typical of poor neighborhoods, often stunt
intellectual, affective, and moral growth.
Poverty as a multifaceted environment severely limits the
actualization of abilities, good character, normal IQ, and
motivation; it limits the range of available opportunities
(O'Connor and Rutter, 1996). Therefore, even though it is
not an acceptable situation, it makes sense that the IQs of
children who have spent all their lives in poverty are lower
than nonpoor children's IQs or than that of disadvantaged
children living in a nonpoor neighborhood which provides them
with compensatory resources (Crane, 1994; Ogbu, 1978). What
is rather amazing is that at least half of the children in
poverty environments overcome their disadvantages. But there
is more to this line of reasoning than meets the eye. A deprived,
unstimulating, and even criminogenic environment produces
another negative effect: it exacerbates a child's negative
predispositions. Let's again take the example of aggressiveness,
which is partly genetic, and imagine a child predisposed to
aggressiveness born into a family where the parents fight
constantly, are irritable and harsh because of daily stressors,
are too busy making ends meet and don't supervise him. He
is allowed to watch violent television programs, and is left
to roam a neighborhood where kids fight and engage in criminal
activities. The child also attends school with a large number
of aggressive peers. This child, already predisposed to aggression,
is "seeded" into an environment that encourages
his aggressive tendencies at every turn or, at the very least,
does nothing to control them. In fact, such an environment
contributes to the development of aggressive behavior even
in children who have no predisposition to it: they simply
learn it or are pressured into it by peers.
What this example illustrates is the principle that a detrimental
environment prevents or, at the very least, discourages the
development of socially valued characteristics such as academic
abilities, good work habits, and prosociability. Instead,
it encourages the development of negative traits, such as
impulsivity, aggressiveness, low attention span, laziness,
and "attitudes" against authority. The combination
of positive characteristics that are never actualized and
negative characteristics that are encouraged by the environrnent
may well result in a low-IQ youth who is impulsive, aggressive,
not interested in school, who fights, joins a gang, gets a
criminal record, has a child whom he can't support, and so
on. And if these negative chains of events are multiplied
by the number of inhabitants who may be at risk, we can understand
how some poor neighborhoods have a concentration of low IQ
persons and school dropouts, as well as elevated rates of
teenage childbearing, delinquency, criminality, unemployment,
and hostile attitudes against authority and education.
One also has to consider that, at the genetic level, there
are children who have inherited a configuration of good genes
which makes them resilient to many adversities in their environments
and allows them to escape poverty more easily than others
(Garmezy and Masten, 1994). A sunny temperament may shield
such children from quarrelsome siblings, aggressive peers,
and material deprivation (see Tschann et al., 1996). That
same easy temperament may even get them to be noticed favorably
by one adult, whether a parent, a relative, or a teacher.
The relationship then becomes a resource that helps the child
overcome some or all of the negative aspects of his or her
environment. 19 Traits that are not valued in our society,
such as shyness, may also serve a protective function20 against
the development of behavioral problems in criminogenic areas
or families.21 In contrast, an outgoing and independent child
(traits that are valued in North America) may be propelled
into socializing with criminogenic elements in his or her
district, thus placing the child at risk.
In addition, a high IQ, although it might be somewhat dampened
by poverty, combined with a curious and sunny predisposition,
may help a child cope, solve problems, remain out of trouble,
persist in school, and acquire work habits that lead to a
well-remunerated job and subsequent exit out of poverty. In
contrast, small children who have difficult personality characteristics
react more stressfully to noise, overcrowding, and even the
birth of a sibling (Wachs, 1987). When older, these same children
are more vulnerable to the stressors of poverty (Elder, Caspi,
and Nguyen, 1994), thus more likely to remain disadvantaged
into adulthood.
There are other environmental reasons why many children
do get out of poverty, even though they may never become affluent.
For one, not all poor families are dysfunctional and not all
live in disadvantaged neighborhoods. Even very dysfunctional
families in deprived neighborhoods may have one member who
is competent and who nurtures the child. Second, some children
may attend an early preschool program that compensates to
some extent for the deprived -home and neighborhood environments
(Campbell and Ramey, 1994). Finally, few children spend their
entire lives in poverty; as their family's economic condition
improves, so do their lives and family environment. They may,
however, if they belong to a minority group, remain locked
within inner-city poverty so that their new familial advantage
is counterbalanced by the perpetuation of neighborhood deficits.
POVERTY CREATES INFERIORITY
The question that some people may now raise is this: obviously,
not all poor people have low IQs, are deviant or criminal,
or produce babies at age fourteen. Does this not mean that
those who do are inferior? Here as well, the answer is no
and lies in the same interaction between environment and genetics
described above. To begin with, the quality of the gene pool
in a population does not change within a twenty-five year
span, which is the time it has taken for- the spectacular
rise in single parenting. 22 Nor can the gene pool have deteriorated
during the tern to twenty years during which all manners of
negative outcomes among the poor have increased, including
violent delinquency. Therefore, one has to look to environmental
factors for an answer to this apparent "inferiority."
The point is that poverty creates individuals who think,
behave, and even look as if they were genetically inferior.
Many may indeed be constitutionally disadvantaged, but the
reason lies in povertyrelated prenatal risks and early infancy
malnutrition, as well as trauma and deprivation. Given a favorable
environment, such persons' children will not inherit this
constitutional disadvantage because it is not genetic but
is environmentally caused. Even though most poor people will
never be affluent, some of their children or grandchildren
will be. Moreover, subnormal individuals are not as likely
to reproduce themselves; therefore their genes are not perpetuated.
One must establish a distinction between (1) poverty that
is created or perpetuated by severely flawed genetic characteristics
that are transmitted from generation to generation to a certain
proportion of children in each generation (but not to all);
(2) poverty perpetuated by lower abilities resulting from
a lack of opportunities to actualize positive potential, and
from environmental deficits that encourage the development
of negative behaviors; and (3) the learning by each deprived
generation of behaviors conducive to remaining in poverty,
maintaining abilities at their lowest common denominator,
and engaging in deviant behaviors.
As pointed out earlier, outcome (1) above is the least common
as there are very few families that are consistently inferior
genetically over several generations, whether in terms of
a subnormal IQ or other severe mental or psychiatric deficits.
(At the other end of the spectrum, the correlate is that there
are few families that are consistently superior: some of their
members may be, but not all.) Despite a great deal of assortative
mating, there is too much geographic mobility in a large urban
society for the formation of a solid block of inferior genes.
This would require that individuals consistently intermarry
and remain poor as a result of their inherited deficiencies.
Moreover, both at the superior and inferior ends of the spectrum
of abilities, including IQ, there are too many genetic permutations
possible and too many combinations of competencies possible,
as well as too many environmental influences to produce a
persistent pattern of intergenerational heredity. The only
viable conclusion is that poverty creates inferiority and
perpetuates it once it has been created.
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