the answer is: Error
error
A new trial
Experimental error.
a mistake (aka faliure start again)
Scientists often re-do experiments to exclude the chance of an ERROR.
error
Error
Whatever experiment scientists do, when they make a mistake they obviously need to do the whole experiment again!
Error
redo
A new trial
Experimental error.
It is simply the scientific method in action. Make a mistake, correct it and go on or start again.
Another word for mistake is error.
a mistake (aka faliure start again)
The will repeat the experiment, if they can. Sometimes with a very expensive experiment, like a drug trial, there may be steps they can take to mitigate the effects of a mistake. With the Hubble Space Telescope, for example, we were able to attach a lens to correct for a mistake in the primary mirror. Other times the experiment just has to be repeated. That is often the case anyway, as experimental results are more reliable when they are verified and corroborated by an independent group. Most scientific experiments end in failure, and sometimes external factors do show up post-research.
Scientists often re-do experiments to exclude the chance of an ERROR.