A difference threshold is operationally defined as the
a. point at which two stimuli sometimes are recognized as different.
b. point at which two stimuli are recognized as different half of the time.
c. point at which two stimuli are recognized as different all of the time.
d. smallest quantity of physical energy that can be detected.
Answer: b. point at which two stimuli are recognized as different half of the time.
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Dying by homicide is
a. usually sudden and unexpected b. often nonviolent c. rarely an experience involving family members d. typically found among older members of society e. most frequently experienced by females
In the context of drug addiction, which question pertains to psychological dependence?
A) Can taking too much of the drug cause injury and death? B) Will stopping the drug make users sick? C) Will users crave the drug if they stop? D) Is drug addiction genetically determined?