Nathan is doing a sociological study of people who have played professional sports. he interviews his subjects and then he observes them. whatever he is unable to ask or observe, he answers using his common sense. which of his steps is most threatening to the integrity of his study?

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups.b. a researcher conducts a linguistic study of comments posted on a local public blog.c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression.d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.

Provide an example of how you have successfully taken into account individual differences in dealing with people. in what way did your approach make a difference in the outcome of the interaction with that person?

What are the four classes of fire according to nfpa?