In this type of research, the relationship between variables is studied, but there is no manipulation of an independent variable:
a. correlational study
b. experiment
c. case study
d. survey
e. observation
a. correlational study
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Of the following, which was added to the Wechsler tests of intelligence to rule out cultural or education problems that might hinder a person's score?
A. emotional scale B. digit span scale C. similarities scale D. performance scale
Which statement is an example of a downward counterfactual?
A. If the tornado's path was different, there would have been less damage. B. If the house was sturdier, the tornado wouldn't have blown the roof away. C. If the tornado was stronger, the sirens would have sounded sooner. D. If the tornado had hit seconds earlier, we would have all died.
Owls, who hunt at night, can hear sounds that cannot be heard by humans, which illustrates that, compared to humans, they have a much
a. higher absolute threshold for hearing. b. lower absolute threshold for hearing. c. higher sensory adaptation level for sounds. d. lower sensory adaptation level for sounds.
Which of the following are NOT identified in the text as symptoms of stress disorders?
a. insomnia, nightmares, and poor concentration b. hypochondriasis and somatoform pain c. irritability and explosive anger or aggression d. wariness, blunted emotions, and reliving the event