Catherine is taking a research methods class in which the semester project involves conducting original research. catherine is interested in finding out if viewing particular television programs has an impact on behavior. she wants to see if children are more likely to engage in aggressive behavior after they watch television shows that exhibit violent images. catherine's tentative prediction is what scientists refer to as
a. a hypothesisb. an operational definitionc. validityd. reliability

Which of the following was not a result of early humans increasing proficiency at finding food

In the united states, the percentage of children and adolescents affected by obesity has more than tripled since the data from 2015-2016 show that nearly 20% (1 in 5) school age children and young people (6 to 19 years) in the united states has obesity. this is do in part to the fact that younger people consume beverages containing high levels of sugar and products containing high levels of fat. consuming too many calories and not enough exercise are also issues. as a well known industry consultant you know many of the beverage industry executives. you are approached by a coke executive who tells you that someone from coke is unofficially willing to sell pepsi the coke formula and the coke marketing plan for $25 million. the individual has access to both the vault and the bottling equipment so they can get the formula and marketing documents with nobody at the coca cola company knowing. imagine you are a marketing consultant. discuss fully your concerns. what is the ethical dilemma? is it illegal to purchase the coke formula and marketing plan? explain fully your point of view. furthermore, what would you tell the executives regarding childhood obesity?

Asociologist wants to study a culture that occurs in some women’s prisons: “state families,” in which individual prisoners take on certain roles within a group of like-minded prisoners. there is previous evidence that younger prisoners will use older inmates who play the roles of grandparents as a resource before they will turn to staff for and advice. the lieutenant in charge of a dorm of long-term prisoners offers to gather volunteers to speak to the researcher and also offers to vouch for the integrity of the researcher. the use of this staff is: a valid use of a statistical technique referred to “snowball sampling” wherein the inclusion of the first subject leads to the recruitment of another one subject.a useful tactic in obtaining a sample of prisoners who both meet the criteria and who will be honest with the researcher.wrong and is prohibited; subject selection needs to be free from intervention by prison authorities or prisoners.acceptable only when the researcher’s irb grants a special waiver.