hypothesis
test
data
Data.
Conclusion
the CONTROL for the experiment
The word you're probably looking for is "confirmation". Technically, the result of an experiment is always "true", in that it represents what really happened. This may or may not be what you expected to happen. and there may be factors you're unaware of, but still, the result is truly what did happen.
controls
The base word of "experiment" is "experiment."
control
Thus , ergo ,
ensue
The steps are called the procedure.