What is the adjective for information that is based on scientific principles?

The adjective "scientific" is derived from the noun "science" and specifically describes information, methods, or principles that adhere to the systematic study and understanding of the natural world. In this context, "scientific" denotes an approach characterized by the use of rigorous methods, empirical evidence, and valid experimentation, which are essential elements in any scientific endeavor.

While "science-based" could also suggest that something is supported by science, it is not as direct or forceful as "scientific" in describing the quality or characteristic of the information. In contrast, "rational" pertains more to logic and reasoning rather than the specific processes or foundations of science. Therefore, "scientific" is the most precise and appropriate choice when referring to information grounded in scientific principles.