Unit 3.3b Flashcards
1
Q
What’s a control?
A
Experiment set up to show that any effects are the results of the treatment
2
Q
What’s a controlled variable?
A
Variables that may influence the dependent variable should remain constant throughout the experiment
3
Q
What’s sample size?
A
Large enough to allow a valid conclusion that the independent variable did have an effect on the dependent variable
4
Q
What’s repetition?
A
Carrying out the experiment again at a different time with new ingredients to determine reliability
5
Q
What’s selection bias?
A
Where individuals, groups or data are not selected randomly, therefore failing to provide a representative sample