It must be possible to observe whether the hypothesis is true.
The hypothesis must be able to be proved true or false.
The hypothesis must be able to be proved true or false.
capable of being proven false. testable
In Karl Popper's terminology there must be a way to prove a hypothesis false. That is what it means when scientists say that a specific hypothesis is a "testable hypothesis".
testable
It must be possible to observe whether the hypothesis is true.
It must be testable.
It must be testable.
The hypothesis must be able to be proved true or false.
so it can be proven
Yes. A hypothesis must be testable to become a theory.
It must be testable, and must be falsify-able