Controls

Question 1

Negative control

Answer 1

are used to check that only the independent variable is affecting the dependent variable. Negative controls aren’t expected to have any effect

Question 2

Positive control

Answer 2

they should show what a positive result of the experiment should look like to check that it is possible

Question 3

Control group

Answer 3

The subjects in the study are split into two groups- the experimental group and control group
- control group is treated the exact same way the experimental group except for the factor you’re investigating