Bart used to go to his health club every day after work because he almost always saw abigail there. for two full weeks abigail wasn't at the club when bart went there for his workout, and now bart has stopped going to his health club. this example illustrates the operant conditioning process ofa) resistanceb) avoidancec) punishmentd) extinction

Why is it economically necessary for the east germans to build berlin wall

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.

"all the characteristics and experiences that define each of us as individuals" is the definition of