The phrase "are only conclusive" is correct and usable in written English.
It can be used when discussing evidence or arguments that definitively support a conclusion or outcome.
Example: "The results of the experiment are only conclusive when all variables are controlled."
Alternatives: "are solely definitive" or "are exclusively conclusive".
But the demonstration is only conclusive if there's interference – ideally, if the thing ends up at a single position finally, but that position depends on what happened to it on the way".
But the demonstration is only conclusive if there's interference – ideally, if the thing ends up at a single position finally, but that position depends on what happened to it on the way". Where you find your microbe after the experiment is drastically different if it just goes through a single slit, or if it goes through two slits simultaneously.
The clinical data were only conclusive when the later studies were randomized and blinded compared with the initial ones.
This kind of experiment is only conclusive for the domains involved in the "positive" interaction, which might differ from the ones involved in the new interactions that might be of interest.
According to Jaeschke et al (1994), LR− values of less than 0.1 are highly significant, whereas values of 0.1 0.2 are only moderately conclusive.
This epitope has been reported to be associated with the progression of gastric and colorectal tumours, hence there are only a few conclusive studies to date.
The third, aimed at treating a respiratory infection, has shown some signs of effectiveness, but conclusive trials are only now under way.
One limitation of our observation as well as previous similar cases is that these reports are only suggestive but not conclusive evidence of a causal relationship.
It was only after conclusive evidence from satellite data was obtained that the idea of solar wind was accepted.
