2.1.2 Types of Variables

Question 1

Independant Variable (IV)

Answer 1

The variable that is being manipulated by the researcher; the difference between conditions

Question 2

Dependent Variable (DV)

Answer 2

The variable that is being measured by the researcher; the outcome or score.

Question 3

Co-Variable (Co-V)

Answer 3

The two variables being measured within correlational research

Question 4

Operationalism

Answer 4

Defining the above key variables in an objective, measurable way; giving a precise definition

Question 5

Extraneous Variables (EV)

Answer 5

Variables that are not measured or manipulated but effect ALL participant behaviours, which reduces the validity of the study

Question 6

Confounding Variable (Con-V)

Answer 6

Unwanted variables in research that are not measured or manipulated but may affect the outcomes (DV).

They are inconsistent and affect only SOME of the participants.