Marshall ate a hamburger he purchased from his favorite fast food restaurant. An hour later his stomach became very upset and he spent the rest of the evening vomiting. A week later he entered the restaurant and immediately became nauseous when he saw a hamburger. Marshall's nausea when he saw the hamburger is an example of: a. classical conditioning.
b. observational learning.
c. imitation.
d. operant conditioning.

Cost and benefit in economic example

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.

How much time on average do americans currently spend watching tv and videos per day?