Describe the statistical occurrence of low-birthweight births in the United States from 1960 to the present day. Explain some of the reasons for the trends
What will be an ideal response
In the mid 1960s approximately 8.2 percent of babies born in the U.S. were born at
low birthweight. This percentage declined steadily and was at its lowest in the early
1980s, when it was around 6.6 percent. Since then, the rate of low-birthweight births
has been steadily increasing. There are many possible reasons for this increase,
including lack of access to adequate prenatal care, poor social support, and increased rates of drug use, both legal and illegal.
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According to the United Nations, the proportion of people worldwide who suffer from chronic malnourishment is ______.
A. about 5% B. just over 10% C. 15% D. almost 20%
For a t test with one sample we
a. lose one degree of freedom because we have a sample. b. lose one degree of freedom because we estimate the population mean. c. lose two degrees of freedom because of the mean and the standard deviation. d. have N degrees of freedom.
Many people with personality disorder have extreme social anxiety, perhaps paranoia, and are odd, eccentric, and peculiar in their behavior or appearance
a. schizophrenic personality disorder b. schizoid personality disorder c. schizotypal personality disorder d. schizo-extreme personality disorder
Assuming uninterrupted sleep, after experiencing stage IV sleep, the next stage would be ____
a. ?REM sleep b. ?non-REM stage I c. ?non-REM stage II d. ?non-REM stage III