In the late 1800s, edward thorndike observed cats placed in a specially designed box. when a cat pressed a lever –, the cat could leave through a door that opened—a "– state of affairs" for the cat, as thorndike termed it. over time, the cats learned to press the lever –. learning a behavior by observing the consequences is called – conditioning. thorndike called the tendency of behavior with desirable results to be repeated the –.

Regardless of the breadth of the definition attached to the term law, there is an essential truth to the fact that at the core of the nation's expansive legal system lays a body of enforceable written rules meant to maintain order, define the outer limits of our interactions with one another and with our governments, and delineate legal rights and responsibilities. these rules derive from several sources, which collectively are called primary sources of law. there are also secondary sources of law, which are not laws in the technical sense for this assignment, identify and discuss the four types of primary sources of law. in your response, be sure to define each one. discuss what types of laws are derived from each source. identify the source of authority for each one. lastly, provide an example of a law from each source.