501 Critical Reading Questions

a. insisted.
b. demanded.
c. questioned.
d. suggested.
e. argued.
462.
Each of the following reasons is provided as evidence that early
man used grass stalks as toothpicks EXCEPT the
a. width of the grooves on ancient teeth.
b. location of the grooves on ancient teeth.
c. ready availability of grass.
d. ongoing use of grass toothpicks.
e. abrasive quality of grass.
463.
Dr. Hlusko’s approach to determining the source of the grooves on
ancient teeth can best be described as
a. zealous.
b. persistent.
c. sullen.
d. serendipitous.
e. cautious.
464.
The passage suggests the theory that early man used grass stalks as
toothpicks is
a. a possibility.
b. very probable.
c. absolutely certain.
d. fanciful.
e. uncorroborated.
2 4 6
501
Critical Reading Questions
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20)

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2 4 7
Questions 465–469 are based on the following passage.
The following passage analyzes data from the U.S. Census Bureau to draw
conclusions about the economic well being of Americans in the years 1993
and 1994.
From year to year, the economic well being of many Americans
changes considerably, even though the median income of the pop-
ulation as a whole does not vary much in real terms from one year
to the next. One measure of economic well being is the income-to-
poverty ratio. This ratio measures a family’s income compared to
the poverty threshold (the income below which a family is consid-
ered to be in poverty) for that family. For example, the poverty
threshold for a three-person family in 1994 was $11,817. A three-
person family with an income of $20,000 would have an income-to-
poverty ratio of 1.69 (

$
$
2
1
0
1
,
,
0
8
0
1
0
7

).
Between 1993 and 1994 roughly three-quarters of the population
saw their economic well being fluctuate by 5% or more. Conversely,
from year to year less than a quarter of Americans had stable incomes.
In the 1990s fewer people saw their income grow than in the 1980s,
and more people saw their incomes decline. Although the state of the
economy is a notable factor in determining if incomes rise or fall,
changes in personal circumstances are just as important. People had a
good chance of seeing their income rise if they began to work full-
time, the number of workers or adults in their house increased, they
married, or the number of children in the household decreased. Con-
versely, people could expect a decrease in their income if they ceased
to be married or to work full-time.
Another factor that affected the direction of change in family
income was its place on the economic ladder. The closer a family was
to poverty the more likely they were to see their income rise.
Whereas, 45% of families at the top of the economic ladder, those
with income-to-poverty ratios of more than 4.0, experienced income
decreases in 1994. While age, gender, and race play a significant role
in determining one’s place on the economic ladder, these factors are
not good predictors of a rise or fall in income. The only population for
which one of these factors was significant was the elderly, whose
incomes tended to be fairly stable.
501