No, it was a VALID hypothesis.
The Big Bang Theory Season 1, Episode 1
That's actually a VALID example.
The Big Bang Theory Season 8, Episode 21
A VALID point, but unoriginal. B-minus.
The Big Bang Theory Season 8, Episode 2
You know, if this experiment is going to
be VALID, I suggest a neutral environment.
The Big Bang Theory Season 10, Episode 4
...scientifically VALID protocol
that will make our lives better?
The Big Bang Theory Season 3, Episode 3