In order to construct a stratified random sample, the experimenter:
a. subdivides the population into smaller homogeneous groups.
b. randomly selects only a few of the smaller homogeneous groups of agiven population
c. is not concerned with the representativeness of the sample.
d. selects part of a simple random sample.
A
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All commercially-prepared cereals and breads are now fortified with________ to decrease the incidence of spina bifida in infants
Fill in the blank(s) with correct word
Problem solving refers to a child's ability to
a. examine data critically and determine what is useful in making specific decisions and what is not. b. recognize and then solve problems that come the child's way. c. organize and categorize information. d. love learning.
Which of the following statements concerning community influence is true?
a. Learning from a collection of recyclables is minimal. b. Social agencies are able to reach all families in the community. c. Commercial enterprises are only concerned with educating adults. d. Children's use of the community can depend on how safe the neighborhood is.
Korean immigrants to the United States are known for
A. Homogeneity in education, religion, income security, and geographical origins. B. Language diversity and low levels of literacy. C. Settlements in small towns and suburbs. D. The establishment of Buddhist centers. E. A decline in a Korean sense of ethnic identity.