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psychology - exam 1
Terms in this set (20)
Correlation is a measure of the extent to which two factors
The biggest danger of relying on case-study evidence is that it
cannot be generalized to a larger sample or population.
The speed at which a neural impulse travels is increased when the axon is encased by
Which brain structure receives information from all the senses except smell?
Research participants drank either caffeinated or decaffeinated beverages in a study of the effects of caffeine on anxiety levels. Those who received the caffeinated drinks were assigned to the group.
If participants in the experimental group of a drug treatment study are much younger than participants in the control group, the age of the research participants is a
One research team studied the ups and downs of human moods by counting positive and negative words in 504 million Twitter messages. The researchers' method best illustrates the use of
Mr. Anderson suffers from Parkinson's disease and his shaking arm movements are so severe that he has difficulty feeding or dressing himself without help. His symptoms are most likely to be linked with an undersupply of the neurotransmitter
Which of the following correlation coefficients expresses the weakest degree of relationship between two variables?
- +0.25, -0.12, -0.99
Which lobe of the brain receives the input that enables you to feel someone scratching your back?
A neuron's reaction of either firing at full strength or not firing at all is described as
an all-or-none response
In a psychological experiment, the experimental factor that is manipulated by the researcher is called the variable.
A brief electrical charge that travels down the axon of a neuron is called the
A factor other than the independent variable that might produce an effect in an experiment is called a
To understand the unusual behavior of an adult client, a clinical psychologist carefully investigates the client's current life situation and his physical, social-cultural, and educational history. Which research method has the psychologist used?
the case study
An action potential is generated by the movement of
An undersupply of serotonin is most closely linked to
Which limbic system structure regulates thirst and body temperature?
If psychologists discovered that wealthier people are less likely to report feelings of happiness, this would indicate that wealth and happiness are
When every individual in a large population has a small but equal chance of being included in a survey, researchers are using a procedure known as
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