According to federal regulations, the expedited review process may be used when the study procedures pose: a. no more than minimal risk and the research activities fall within regulatory categories identified as eligible. b. a minor increase over minimal risk and the sponsor needs approval before the next irb meeting. c. more than minimal risk, but the study replicates previously approved research. d. any level of risk, but all the subjects are adults.

It is widely assumed that people need to engage in intellectual activities such as solving crossword puzzles or mathematics problems in order to maintain mental sharpness as they age. in fact, however, simply talking to other people—that is, participating in social interaction, which engages many mental and perceptual skills—suffices. evidence to this effect comes from a study showing that the more social contact people report, the better their mental skills. which of the following, if true, most seriously weakens the force of the evidence cited? (a) as people grow older, they are often advised to keep exercising their physical and mental capacities in order to maintain or improve them. (b) many medical conditions and treatments that adversely affect a person's mental sharpness also tend to increase that person's social isolation. (c) many people are proficient both in social interactions and in solving mathematical problems. (d) the study did not itself collect data but analyzed data bearing on the issue from prior studies. (e) the tasks evaluating mental sharpness for which data were compiled by the study were more akin to mathematics problems than to conversation.

After his last drinking spree, fakim hid a half-empty liquor bottle. he couldn't remember where he hid it until he started drinking again. fakim's pattern of recall best illustrates:

Why was louis armstrong considered a jazz legend