Validity, reliability and accuracy Flashcards
1
Q
When is an experiment valid?
A
An experiment is only valid if only one variable is changed in the experiment and all other variables are kept constant.
2
Q
When are results more reliable?
A
Results are more reliable if the experiment is repeated several times.
3
Q
Why is a control experiment set up?
A
The experiment set up to prove that it is the changed variable that is responsible for any change in results.
