If a researcher wants to reproduce a previous study, she can do so in multiple ways. A(n) – involves re-creating previous work as closely as possible to the original. Scientists can also conduct a(n) –, in which a study uses different procedures to re-create a similar finding to the original. Finally, a(n) – involves copying the original experiment and including additional variables to answer new questions.

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.