Which statement best describes a good scientific theory?

Question

Quizplus · Accepted Answer

A good scientific theory must result in testable predictions, meaning that it can be subjected to experimentation and observation to either prove or disprove its tenets. While having a large number of explanatory principles may be useful in some cases, it is not a requirement for a good theory. Similarly, a theory that explains a phenomenon so well that no new hypotheses need to be formulated may be compelling, but it could also indicate that the theory is too narrow in focus and does not account for other related phenomena.

Which Statement Best Describes a Good Scientific Theory