Control of variables

Question 1

Independent variables

Answer 1

Variable that is being changed during the experiment

Question 2

Dependent variable

Answer 2

Being tested or measured during the experiment

Question 3

Extraneous variables

Answer 3

Do not vary systematically with the IV and can be controlled before the experiment begins

Question 4

Confounding variables

Answer 4

Vary systematically with the IV so can’t be sure what caused the change in the DV

Question 5

Demand characteristics

Answer 5

Interpret cues from experimenter and research situation and may change their behaviour

Question 6

Randomisation

Answer 6

Reduce researcher’s influence on design of investigation

Question 7

Standardisation

Answer 7

All participants are subject to same instructions and experience