Using the experimental method, a researcher investigates whether watching television while eating causes a person to eat more potato chips than one eats when not watching television. In this case, the number of potato chips eaten represents the ____.
a.i ndependent variable
b. control variable
c. dependent variable
d. random variable
Ans: b. control variable
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What does the peripheral nervous system do? a. It communicates between the spinal cord and the rest of the body. b. It controls the less important functions of the brain
c. It controls speech, gestures, and other means of communication. d. It controls cognitions, motivations, and emotions.
The immune system's way of telling the brain that the body is ill is by way of ____.
A. macrophages B. cytotoxic cells C. cytokines D. natural killer cells
The first psychological laboratory was established by Wilhelm Wundt
Indicate whether this statement is true or false.
If a person with a Type D personality develops heart disease, she or he is __________ times as likely to have a heart attack, develop cancer, or die from any cause compared to a non-Type D person.
A. one to five B. two to seven C. three to five D. four to seven