Research methods Flashcards
1
Q
what is a negative control?
A
comparison/test that should not have an effect e.g. wind intensity on PH
2
Q
what is a positive control?
A
comparison/ test that has a known effect e.g. water lowering PH
3
Q
what is range bar
A
it can be drawn on a graph and it is the difference between the largest value and smallest value.
