If a research article reports that "The mean performance scores for the Normal Sleep, Reduced Sleep, and No Sleep groups were 18.0, 16.6, and 15.6, respectively, F(2, 36 ) = 2.95, p< .05," the most accurate conclusion is that
A) people who get no sleep perform significantly worse than people who sleep a reduced amount.
B) people who get no sleep perform significantly better than people who sleep a normal amount.
C) the three groups do not all come from populations with the same mean, although it is not clear which population means are different.
D) conclusions about the relationship between amount of sleep and performance cannot be drawn from these results.
C
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Which subdivision of the peripheral nervous system do humans use to perceive, think, and coordinate their behaviour?
A) the central nervous system B) the autonomic nervous system C) the somatic nervous system D) the parasympathetic nervous system
You know your friend Ramon has just had a split-brain surgery to treat his uncontrollable epileptic seizures. When Ramon returns to school, it is likely that he will a. have trouble verbalizing his feelings
b. no longer be a star athlete as his coordination will have been affected. c. almost be the same, but his grades will probably drop a bit. d. have only very subtle changes that show up in follow-up tests of cognitive functioning.
When war and social crises are temporary, most children __________
A) do not show long-term emotional difficulties B) experience serious psychological damage C) show an increased sensitivity to violence D) experience a decrease in physical aggression
Tammy's father is an exceptional gymnast. When Tammy was just a toddler, her father believed that Tammy already showed great promise as a gymnast. Tammy's father probably believes that athletic ability is mostly determined by
A) nurture. B) stages. C) nature. D) early experiences.