In general, a zero correlation means that
a. as the values of one variable increase, there is no tendency for the values of the other variable to change in any consistent, predictable fashion.
b. as the values of one variable increase, there is a tendency for the values of the other variable also to increase.
c. as the values of one variable increase, there is a tendency for the values of the other variable to decrease.
d. as the values of one variable decrease, there is a tendency for the values of the other variable also to decrease.
A
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One reason behavior therapy has "a long past but a short history" is that early examples
a. were generally ineffective treatments. b. haphazardly mixed multiple techniques. c. often employed unethical procedures. d. had no real influence on its development.
What did Darwin view as the purpose of emotions?
a) to convey information that helps organisms adapt b) to replace slow neural firing with instinctive behavior c) to decrease dependence on purely cognitive reactions d) to communicate our true feelings to others in order to avoid conflict
As part of a research project, a hospital screens genetic material from all newborns. If one of the newborns was found to have three #21 chromosomes, what is the baby's prognosis?
a) The baby is likely to be mentally retarded as a result of Down syndrome. b) The child is at increased risk for developing schizophrenia or a related disorder. c) A severe case of anoxia caused a chromosomal abnormality and will lead to early death. d) There is only a small chance that the baby will live to be five years old as a result of extensive injury to the central nervous system.
"Say Cheese!" If you voluntarily smile when someone takes a picture even though you are not happy or amused and you don't really feel like smiling, these facial movements are controlled by your ________ motor system.
A. autonomic B. extrapyramidal C. central D. pyramidal