The French Black Copper Maran lays the darkest egg of all chicken breeds. Until a few years ago this breed was difficult to find and a breeding pair would go for hundreds of dollars. The dark eggs are prized by French chefs because of the deep orange yolks and rich flavor.
The events that students experience as reinforcing and punishing are always changing based on both the presence and absence of many different environmental and social situations. The term Setting Event is used to describe the events that momentarily change the value of reinforcers and punishers in a student's life.
Setting is the when and where of a literary text. For example, the novel Gone With the Wind takes place in and around Atlanta, Georgia, and the plot - or action - occurs before, during and after the Civil War. Although it's a simple concept, setting is a vital literary element.