What was the primary purpose of the "Fragile Families and Child Well-Being Study?"
a. to determine health risks for children exposed to drugs and alcohol during the prenatal period
b. to identify characteristics associated with fathers who were most likely to abandon their children
c. to evaluate the impact of child welfare legislation that provided benefits for unwed mothers
d. to evaluate the impact of poverty and environmental stress on the development of young children
d
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Which of the following is most accurate about infant emotion in the first 2 years of life?
a. Emotions are tied to internal states of pain and pleasure during the first 2 years of life. b. Emotions change in stage-like progression from internal physical expressions to differentiation of self in relation to others in the environment. c. Infant emotional expressions remain limited and unchanging during the first 2 years with no stage-like progression. d. Infant emotions are primarily negative in the first 2 years, reflecting wariness, anger, and defiance.
The likelihood of an action potential will increase whenever:
a. sodium channels open, allowing sodium ions to flow into a neuron b. either potassium ions flow out of the cell body or chloride ions flow into the cell body c. either chloride ions flow out of the cell body or potassium ions flow into the cell body d. the neuron's sodium/potassium pump is inactivated
A common reason for slow fetal growth is maternal malnutrition
: Indicate whether this statement is true or false.
Oral rehydration therapy (ORT) and zinc supplement interventions
A) are effective for children with severe diarrhea, but they are expensive to administer. B) must be administered by trained medical professionals or public health workers. C) save the lives of millions of children each year. D) are less effective than immunization in preventing childhood deaths due to diarrhea.