A random sample is one in which
A) every member of the target population has an equal chance of participating.
B) people who happen to be available are used.
C) no plan is used for recruiting participants.
D) persons with required characteristics are selected.
A
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Which of the following is one of 5 primary types of compulsive rituals?
a. eating b. smoking c. drinking d. counting
Which of the following is true of Vygotsky's sociocultural theory?
A) Researchers have found that children of parents who provide scaffolding early on perform better in elementary school than children whose parents did not provide scaffolding. B) Most current research supports Vygotsky's ideas. C) Children who work collaboratively perform worse on sophisticated tasks than children who work alone. D) Most of the current research contradicts Vygotsky's ideas.