A researcher wants to determine the effect of sleep loss on human problem-solving. Subjects in an appropriate control group for such an experiment would be described as having
a. much more sleep than normal.
b. much less sleep than normal.
c. a normal amount of sleep.
d. the same amount of sleep as the experimental group.
C
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Unlike the electricity that powers lights, the body’s electrochemical energy relies upon ____
a. ?ions b. ?alternating current c. ?direct current d. ?electrons
According to research on language development, which one of the following approaches to speaking to children is associated with better language outcomes?
A. Matilda speaks to her children in simplistic language that differs from how she would speak to another adult. B. Helen speaks to her children using formal language and often uses complicated words unfamiliar to her children. C. Robert speaks to his children using words comprised of no fewer than three phonemes. D. Mark speaks to his children using different accents so that they can hear different phoneme pronunciations.
At least in animal studies, flavonoids have been shown to ______.
A. inhibit cellular learning mechanisms B. enhance LTP C. enhance LTD D. inhibit neurogenesis in the hippocampus
According to research, one of the most serious problems associated with televised violence is that
A. the violenceis punished by violence. B. the violence is glamorized and goes unpunished. C. the violence is not easily understood by children. D. only bad characters perform violent actions.