Practical skills Flashcards
(5 cards)
1
Q
How to improve accuracy?
A
-Repeat and calculate mean
-Use larger sample
2
Q
How to improve precision?
A
-Smaller measuring units
3
Q
How to improve validity?
A
-Control variables
4
Q
What happens if collecting a sample isn’t random?
A
-Could be biased so results are not representative
5
Q
How to check if an experiment is repeatable?
A
Repeat and check if the results are similar
