I want to study jury decision making in Miami, and I want to have a representative sample for a mock jury study. I look at the demographic make-up of Miami-Dade county and obtain a pool of participants that matches it perfectly in all categories (gender, race, age, etc.). What sampling technique did I use

According to ohrp, a problem is an “unanticipated problem” when it meets which of the following criteria: unexpected, related or possibly related to the research, suggests that the research does not put the subjects or others at greater riskunexpected, related or possible related to the research, suggests the research puts subjects or others at greater riskunexpected, unrelated to the research but still occurring with a subject, suggests the research puts others at greater riskexpected, related or possible related to the research, suggests the research puts others at greater risk

What was the name of the theory that said that if one country in a region fell to communism, others would surely follow? 1) domino theory 2) arms race 3) brinkmanship 4) containment theory

Which is the best location for farming? ( southwest asia ) a: east of the jordan river b: central syria c: southern israel d: the coast of lebanon