Jessie, who is a freshman in college, has become addicted to an opium derivative, which has become popular with younger abusers. Jessie's drug addiction is most likely to
a. GHB.
b. Oxycontin.
c. MDMA.
d. methamphetamine.
B
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Ivan Pavlov studied the reflexive flow of saliva in dogs. He used meat powder or other food to trigger the salivation. It was later observed that the salivation in the dog was triggered when the dog saw its dog dish, even before the food was placed in it. In this instance, the dog dish is the ________.
A) conditioned stimulus B) unconditioned stimulus C) conditioned response D) unconditioned response
As Katrina develops from being a toddler to being an adolescent, she is likely to show which of the following progressions in recognizing the distinction between fantasy and real life as depicted on television?
a. Failure to make a distinction; believing that few events on television occur in real life; understanding which events depicted on television are fictional and which are real. b. Believing that few events on television occur in real life; failure to make a distinction; understanding which events depicted on television are fictional and which are real. c. Failure to make a distinction; understanding which events depicted on television are fictional and which are real; believing that all events on television occur in real life. d. Believing that few events on television occur in real life; understanding which events depicted on television are fictional and which are real; failure to make a distinction.
When potassium concentrations in the extracellular fluid are increased, the resting potential
A. remains the same. B. is reduced, making signaling less likely. C. is reduced, making signaling more likely. D. is increased, making signaling more likely.
The most important limitation of the experimental method is that, no matter how careful an experimenter is, factors other than the independent variable can affect different subject groups in the study unequally. These factors are called _____
a) dependent variables. b) confounding variables. c) selection variables. d) error variables.