What fraction of the U.S. population was under the age of 18 in 2006?
A. One-eighth
B. One-quarter
C. One-third
D. One-half
ANS: B
You might also like to view...
The quality of childcare and national education reform are part of which theme?
a. Transmission of values b. Professionalism c. Importance of childhood d. Ethic of social reform
A personality test has been carefully prepared to measure a single trait. Which of the following coefficients would probably be lowest in size?
a. Kuder-Richardson c. Coefficient of stability b. Split-half coefficient d. Coefficient of stability and equivalence
Although we arbitrarily divide pregnancy into three trimesters, there are other periods that are more significant for the developing baby. These periods are called the ____________ period, the _____________ period, and the _______________ period
A. germinal; embryonic; gestational B. embryonic; fertilization; ectopic C. fertilization; ectopic; germinal D. germinal; embryonic; fetal
What is the best descriptor of a child's brain by age 3?
a. It is twice as active as those of adults b. It is three times as active as those of adults c. It matches the adult's development d. It has developed one third of its total synapses