P.W. Herman wants to know whether consumption of alcoholic beverages affects peoples' bicycling abilities. He suggeststhat the alcohol itself doesn’t have any negative effects, but that people who drink alcohol expect to have their riding abilities impaired so they "act drunk." To control for the participants' expectations, P.W. gives half of his sample vodka and the other half of his sample
vodka-flavored water. P.W. is using a(n)____research method, and the vodka-flavored water is a ____.?
a. ?naturalistic observation; confounding variable
b. ?survey; confounding variable
c. ?experimental; placebo
d. ?experimental; treatment variable
ANSWER:
c
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The Children's Television Act
a. ensures that all children's television is educational. b. rates children's television programs for number of violent scenes per episode. c. requires that networks devote a certain number of hours per week to educational programming. d. allows children to create TV shows for children.
In the scientific method, which of the following is true about a hypothesis?
A. The same hypothesis may not be tested more than once. B. Research studies are designed to prove a hypothesis. C. A specific hypothesis is generated based on an established theory. D. A hypothesis explains and predicts a phenomenon.
Which of the following statements best describes the concept of operant conditioning?
Organisms learn from the relations between stimuli. Organisms learn from the consequences of their behavior. Organisms learn by observing the behavior of others. Organisms learn from their involuntary responses which develop over time.
The _________ is the outer portion of the brain that contains two hemispheres and four regions with distinct functions.
A. hypothalamus B. thalamus C. hippocampus D. cerebral cortex