If a researcher demands a very high standard of significance, he may make a mistake - saying there is no relationship in the population when in reality one exists

Which of the following studies used a participant observer approach?

A) Darwin's study of natural selection B) Levine's study of the Love Canal Home Owner's Association C) Goodall's study of chimpanzees D) All of the above

Of the following, which type of worker is best positioned to withstand the effects of an economic downturn such as the Great Recession?

a. blue-collar workers b. low-skilled service workers c. manufacturing industry employees d. software engineers