A strong negative correlation indicates that
A) as the occurrence of one variable increases the occurrence of the second variable also increases.
B) as the occurrence of one variable increases the occurrence of the second variable decreases.
C) as the occurrence of one variable decreases the occurrence of the second variable decreases.
D) the two variables show no relationship to each other.
B) as the occurrence of one variable increases the occurrence of the second variable decreases. A negative correlation between two variables means higher scores on one variable tend to be linked to lower scores on the second.
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Recent research suggests that which of the following structures is involved in higher-order cognitive functions such as attention and planning?
a. pons b. medulla c. cerebellum d. brainstem
According to the retinex theory, we perceive color by ____.
A. the relative activity of three kinds of cones B. contrasting the activity in one area of the visual field with that of the others C. a red versus green system and a yellow vs. blue system D. detecting the velocity of action potentials from the eye
Adrenergic and noradrenergic receptor subtypes are
A. always ionotropic. B. always metabotropic. C. ionotropic in synapses using norepinephrine and metabotropic in synapses using epinephrine. D. ionotropic in synapses using epinephrine and metabotropic in synapses using norepinephrine.
Which of the following is true with respect to tolerance?
a. It is defined as a decreased drug effect with repeated use. b. It most likely involves a compensatory adaptation of the nervous system. c. It can lead to an increased risk for overdose. d. All of the above