A _____ sample is one in which every member of the population has an equal probability of being selected for the sample
a. representative c. nationwide
b. biased d. random
D
This defines a random sample.
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Which of the following is a difference between primary and secondary circular reactions?
A. Primary circular reactions involve only reflexes, while secondary circular reactions involve only thoughts. B. Primary circular reactions involve complex actions, while secondary circular reactions involve simple actions. C. Primary circular reactions focus on an infant's own body, while secondary circular reactions focus on the environment. D. Primary circular reactions involve voluntary actions, while secondary circular reactions involve involuntary actions.
Essay questions, fill-in-the-blanks, and the recitation of poems all measure memory through
a. relearning. b. recognition. c. recall. d. retroactive redintegration.
Dramatic increases in __________ and __________ are responsible for the swift gain in overall brain size during the first years of life
A) neurons; neural fibers
B) synapses; glial cells
C) neurons; glial cells
D) neural fibers; myelination
Thirty-year-old Isabella is in the third stage of recentering. In the context of identity development in emerging adulthood, which of the following is most likely true about Isabella?
A. She is committed to a partner and a career. B. She is embedded within her family of origin. C. She is not close to her parents. D. She lacks self-reliance and self-directedness.