A corroborated hypothesis is one that has passed its tests (i.e. one whose predictions have been verified). Consequently different scientists test the hypothesis. If further corroborated by subsequent tests, it becomes highly corroborated and is considered to become reliable knowledge. The technical name for this part of the scientific method is the “hypothetico-deductive method”.
The hypothetico-deductive method is named because one deduces the results of the predictions of the hypothesis and tests these deductions. Inductive reasoning, the alternative to deductive reasoning, was used earlier to help formulate the hypothesis. Both these types of reasoning are therefore used in science, and both must be used logically.