If cancer, stroke, and heart disease were eliminated, demographers estimate that the life of an average 70-year-old would be extended approximately __________
a) 10 years
b) 7 years
c) 5 years
d) 15 years
Answer: b
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Theoretically, if Susie repeatedly took the 6th grade achievement test, you would be able to find her true score by finding the ____ of the distribution of her scores
a. mean b. standard deviation c. variance d. standard error of measurement
When he was 9 years old, Mike tried shrimp for the first time but fell very ill shortly thereafter. Within a few hours he was vomiting and was sick for the rest of the night. Now, years later, Mike cannot bring himself to eat shrimp. This is an example of ____
a. ?nonassociative learning b. ?classical conditioning c. ?operant conditioning d. ?observational learning
The boundaries between words in spoken language
a. are just as distinctive as the boundaries between words in written language. b. are more distinctive in English than in other languages. c. are often missing, so that two words are not separated by an actual pause. d. are difficult for children to perceive, though adults rarely make perceptual errors.
Which of the following statements is true of sleep?
A) Older people need more sleep than younger adults. B) Teenagers sleep 8 hours a day. C) Newborn babies sleep less than 10 hours a day. D) People need more sleep when they are under stress.