terrence claims that a new species of bacteria should be
placed on the list of bacteria that cause infectious
diseases. he ran his experiment several times in one day
and got the same results. ben and frieda also ran his
experiment multiple times themselves. they never got the
same results that terrence did.
it is invalid because it could not stand up to
experimentation
it is valid because only one person needs to validate it.
it is valid because he did the experiment multiple times.
it is invalid because bacteria are always changing