142. For which of the following distributions of scores would the median most clearly be a
more appropriate measure of central tendency than the mean?
A) 10, 22, 8, 9, 6
B) 12, 6, 8, 5, 4
C) 12, 15, 12, 9, 12
D) 23, 7, 3, 27, 16
143. When Mr. Adams calcul
163. Statistical reasoning can help us to generalize correctly from a
A) range to a standard deviation.
B) standard deviation to a mean.
C) sample to a population.
D) bar graph to a skewed distribution.
164. The precision with which a sample average appro
330. The chemical messengers of the endocrine system are called
331. In a moment of danger, an individual's adrenal glands release
332. When confronted
197. Left-handedness is _ common than usual among mathematicians and _
common than usual among artists.
A) less; more
B) less; less
C) more; less
D) more; more
198. In Roger Sperry's view, the brain creates and controls the mind, which in turn influences
242. Aristotle believed that the mind was most intimately connected with the
243. The nineteenth-century theory that bumps on the skull reveal a person's abilities and
traits is called
A) evolutionary psychology.
182. When Leanne read a newspaper report that drinking orange juice triggers hyperactivity
in children, she questioned whether the children's behavior had been assessed using
scientifically appropriate methods. Leanne's reaction best illustrates
A) the pe
241. Hypotheses are best described as
242. Dr. Birk suggests that since depression is associated with pessimistic thinking,
depressed students would be more likely than nondepressed student
222. A psychologist notes that we are especially attracted to people whose traits are different
from our own. This statement would seem unsurprising to students because
A) most students have often been attracted to people different from themselves.
351. The medulla is part of the brain that most directly regulates
A) language comprehension.
B) face recognition.
C) sexual motivation.
D) heartbeat and breathing.
352. Due to brain damage caused by a growing tumor, Joseph had to be placed on a
113. To identify which specific brain areas are most active during a particular mental task,
researchers would be most likely to make use of a(n)
B) microelectrode insertion.
D) brain lesion.
114. A new _ technique provides greatly increa
25. The depolarization of a neural membrane can create a(n)
A) action potential.
B) myelin sheath.
C) neural network.
26. During a resting pause following depolarization, the sodium/potassium pump transports
_ ions _ a neuron.
202. Psychological theories help to
A) organize scientific observations.
B) explain observed facts.
C) generate hypotheses.
D) do all of these things.
203. Which research method runs the greatest risk of collecting evidence that may be
122. The first major issue that emerges in debates over experimenting on animals centers
A) usefulness of studying biological processes in animals.
B) ethics of placing the well-being of humans above that of animals.
C) obligation to treat info
62. Correlation is a measure of the extent to which two factors
A) vary together.
B) are random samples.
C) influence each other.
D) have similar operational definitions.
63. Correlational research is most useful for purposes of
322. To study some effects of alcohol consumption, Dr. Chu tested the physical coordination
skills of 21-year-old men who had just drunk either 4, 2, or 0 ounces of alcohol. In this
study, the independent variable consisted of
A) the age of the research p
70. Information is carried from the central nervous system to the body's tissues by
B) sensory neurons.
C) motor neurons.
D) adrenal glands.
71. Some neurons enable you to grasp objects by relaying outgoing messages to the muscles
261. The survey is a research method in which
A) individuals are carefully observed in their natural environments.
B) a representative, random sample of individuals are questioned regarding their
attitudes or behaviors.
C) an individual or group is studie
282. Which of the following correlations expresses the strongest degree of relationship
between two variables?
283. A correlation between levels of impulsiveness and annual income of 0.75 would
A) lower leve
343. The most familiar measure of central tendency is the
D) standard deviation.
344. During the past month, Henri and Sylvia each ate 10 candy bars, while Jerry ate 8,
Tricia ate 6, and Tahli ate only 1. The mean number of ca
42. A descriptive technique of monitoring and recording behavior in naturally occurring
situations without trying to change or control the situation is called
A) random sampling.
B) naturalistic observation.
D) the double-blind procedure.
91. Aaron consistently exhibits a knee-jerk response without having any sensations of the
taps on his knees. Aaron's experience is most indicative of
A) botulin poisoning.
B) a severed spinal cord.
C) a sympathetic nervous system injury.
D) a refractory p
302. The most effective way of assessing the impact of hormone replacement therapy on
women's health is by means of
A) case studies.
C) correlational measurement.
D) naturalistic observations.
303. In an experiment, the experimental group
176. A person whose hand had been amputated actually felt sensations on his nonexistent
fingers when his arm was stroked. This best illustrates the consequences of
D) cognitive neural prosthetics.
82. Suppose that people who watch a lot of violence on TV are also particularly likely to
behave aggressively. This relationship would NOT necessarily indicate that watching
violence influences aggressive behavior because
A) we most readily notice associa
2. Phrenology highlighted the presumed functions of
A) specific brain regions.
B) synaptic gaps.
D) the myelin sheath.
3. The person most likely to suggest that the shape of a person's skull indicates the extent
to which that individual is
156. The somatosensory cortex is most critical for our sense of
157. Which part of your brain is essential for receiving information that you are moving your
A) corpus callosum
10-1 Expected Return Compute the expected return given these three economic states, their
and the potential returns:
RISK AND RETURNS
Measuring Systematic Risk
When evaluating the risk of an investment, an investor with a
diversified portfolio will only care about its systematic risk, which
cannot be eliminated through diversification.
In exchange for beari