Experimental Design Flashcards
1
Q
What is a variable
A
A variable is a factor of an experiment that can be changed
Eg- light intensity, temperature
2
Q
Meaning of validity
A
An experiment is only valid if the other variables are controlled.
3
Q
What is reliability
A
When consistent values in repeated experiments are obtained.
4
Q
How to increase reliability
A
Increasing the number of samples
Repeat for Reliability
5
Q
What is a control
A
A control is set up to compare results of an experiment when no treatment is applied.
6
Q
How to improve accuracy
A
Making sure measurements from experiments are taken carefully
