ex. a variable may be the independent variable in one study but serve as a dependent variable in another experiment. it is very helpful and important to define the independent and dependent variables in your research, and this should be done at the beginning of any experiment.
Article 6 Clause 2 of the Constitution states what is considered the supreme law of the land. There is no mention Supreme Court precedents. This clause clearly states that the Constitution is the supreme law of the land and no laws whether federal or state can violate the constitution and be legally binding.
This Constitution , and the Laws of the United States which shall be made in Pursuance thereof ; and all Treaties made , or which shall be made , under the Authority of the United States , shall be the supreme Law of the Land ; and the Judges in every State shall be bound thereby , any Thing in the Constitution or Laws of any State to the Contrary ...