Which research method runs the greatest risk of collecting evidence that may be
unrepresentative of what is generally true? - ANSWER-the case study
In a well controlled experiment, research seek to minimize - ANSWER-confounding
variables
Every twenty-fifth person who subscribed to a weekly news magazine was contacted by
market researchers to complete a survey of opinions regarding the magazine's
contents. The researchers were applying the technique known as - ANSWER-random
sampling
a correlation of +.70 between children's physical height and their popularity among their
peers indicates that - ANSWER-higher levels of popularity among peers is associated
with greater physical height in children
If psychologists discovered that poor people are more satisfied with their marriages than
wealthy people are, this would indicate that wealth and marital satisfaction are -
ANSWER-Negatively correlated
Professor Ober carefully observes and records the behaviors of children in their
classrooms in order to track the development of their social and intellectual skills.
Professor Ober is most clearly engaged - ANSWER-Naturalistic observation
To test the potential effect of hunger on taste sensitivity, groups of research participants
are deprived of food for differing lengths of time before they engage in a taste-sensitivity
test. This research is an example of - ANSWER-an experiment
Which of the following methods is most helpful for clarifying cause-effect relationships? -
ANSWER-The experiment
Replication of a research study is most likely to be facilitated by - ANSWER-Operational
definitions
Correlation is a measure of the extent to which two factors - ANSWER-Vary together
Studying people of all races and cultures is most helpful for - ANSWER-Discerning
human similarities and differences
in an experimental study of the effects of dieting on weight loss, dieting would be the -
ANSWER-independent variable
,Jamie and Lynn were sure that they had answered most of the multiple-choice
questions correctly because "the questions required only common sense." However,
they each scored less than 60% on the exam. This best illustrates - ANSWER-
overconfidence
in a study of factors that might affect memory, research participants were assigned to
drink either an alcoholic or a nonalcoholic beverage prior to completing a memory test.
Those who drank the nonalcoholic beverage were assigned to the ______ group -
ANSWER-control
Ahmed has five sisters who are 3, 3, 5, 9, and 10 years of age. The number "5"
represents the ________ of the sisters' ages. - ANSWER-median
A focus on the links between brain activity and behavior is most characteristic of
psychologists who work from a ________ perspective. - ANSWER-Biological
Which part of your brain receives information that you are moving your legs? -
ANSWER-Sensory Cortex
Dendrites are branching extensions of - ANSWER-neurons
The speed at which a neural impulse travels is increased when the axon is encased by
a(n) - ANSWER-Myelin sheath
The cerebral cortex is the covering layer of the - ANSWER-Cerebrum
You come home one night to find a burglar in your house. Your heart starts racing and
you begin to perspire. These physical reactions are triggered by the - ANSWER-
Sympathetic Nervous system
To excite or inhibit an action potential in a receiving neuron, a neurotransmitter must
cross the - ANSWER-synaptic gap
Research with split-brain patients suggests that the ________ typically constructs the
theories people offer to explain their own behaviors. - ANSWER-left cerebral
hemisphere
the peripheral nervous system consists of - ANSWER-sensory and motor neurons
The visual cortex is located in the - ANSWER-occipital lobe
To monitor the electrical activity in the brain that is triggered by hearing one's own
name, researchers would make use of a(n) - ANSWER-EEG
Which lobe of the cerebral cortex is most directly involved in speaking? - ANSWER-
frontal
, Depressed mood states are linked to ________ levels of serotonin and ________ levels
of norepinephrine. - ANSWER-low; low
The autonomic nervous system most directly controls - ANSWER-bladder contractions
An axon transmits messages ________ the cell body and a dendrite transmits
messages ________ the cell body. - ANSWER-away from; toward
Chemical substances that alter perceptions and moods are called ________ drugs. -
ANSWER-Psychoactive
The human sleep cycle repeats itself about every - ANSWER-90 minutes
Traffic accident rates have been found to ________ after the spring change to daylight
savings time and to ________ after the fall change back to standard time. - ANSWER-
increase; decrease
A periodic, natural, reversible loss of consciousness that involves distinct stages is
known as - ANSWER-sleep
Which of the following is bad advice for a person trying to overcome insomnia? -
ANSWER-Drink a glass of wine 15 minutes before bed
A condition in which a person can respond to a visual stimulus without consciously
experiencing it is known as - ANSWER-blindsight
Evidence suggests that we consolidate our memories of recent life events through -
ANSWER-REM Sleep
The large, slow brain waves associated with NREM-3 sleep are called - ANSWER-delta
waves
People who claim to have been abducted by space aliens—often shortly after going to
bed—commonly recall being floated off their beds. It is most likely that they have
incorporated ________ into their memories. - ANSWER-Hypnagogic sensations
Hallucinations similar to those that accompany the near-death experience can be
produced by - ANSWER-oxygen deprivation
The experience of physical pain following discontinued use of a psychoactive drug best
illustrates - ANSWER-withdrawal
Which sleep disorder is most likely to be accompanied by sleepwalking and
sleeptalking? - ANSWER-night terrors