Which of the following statements about exercise in late adulthood is true?
A) Weight-bearing exercise promotes muscle size and strength, even if begun as late as age 90.
B) Brain scans show that physically fit older people experience more tissue loss in the cerebral cortex.
C) "Taking it easy" is the best treatment for many chronic diseases.
D) Good nutrition and physical activity are only beneficial when they are lifelong habits.
A
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In a memory test, the test of statistical significance used showed a probability of .025 that the group mean of the experimental group and the group mean of the control group would differ as much as they do by chance alone. This allows us to
a. estimate the percent of variance between the two group means. b. establish a normal curve, regarding the memory score changes that occurred. c. calculate the measures of central tendency and measures of variability for this experiment. d. conclude with reasonable certainty that the drug actually did improve memory scores.
Thiamine deficiencies affect nervous system functioning because thiamine
a. prevents excess apoptosis in the aging brain b. protects the brain from adverse reactions to alcohol. c. is important in the synthesis of glutamate. d. is important in the synthesis of acetylcholine.
Broadening the scope of the discussion, for example, by bringing up past arguments or other current issues, is ____
a. overgeneralization b. a nonconstructive communication pattern c. overkill d. name-calling
Some studies have found that persons diverted at the initial hearing stage of the Sequential Intercept Model
A. had fewer days in the hospital when in the community. B. had fewer arrests. C. had less homelessness. D. all of the above