Anyone who has even one gene for Huntington's disease will develop the disease. Therefore we say the gene is which of the following?
a. Recessive
b. Dominant
c. Sex-limited
d. Sex-linked
b
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Which of the following statements accurately describes the impact of mental stress on physiological responses in the human body?
A. For individuals who work, Monday is the most likely day for a heart attack. B. Mental stress lowers blood pressure. C. The heart muscle receives increased oxygen flow during times of mental stress. D. Increased levels of stress positively correlate with increased levels of dopamine.
The extent to which a test is valid for making statements about the criterion is represented by its
a. content validity. b. validity coefficient. c. squared validity coefficient. d. construct-irrelevant variance.
Amanda learned to fear snakes after seeing one for the first time at the zoo. However, it took many exposures to the sound of tapping dancing shoes before she learned to fear that sound. The concept that would explain the fact that we learn to fear some objects more easily than others is
When Sperling investigated sensory memory, he found that iconic memory lasts:
a. less than a second b. between 5 and 9 seconds c. approximately 1 minute d. indefinitely if the image is rehearsed