0.2. Control of variables

Question 1

Extraneous variables

Answer 1

A variable other than the independent variable and the dependent variable that has an impact on the results

Question 2

Control

Answer 2

Keeping variables constant
Factor in controlling extraneous variables
E.g. noise, temp, fatigue, hunger (keep as much as possible the same)

Question 3

Mundane realism

Answer 3

• Does the set up of the task in the study reflect that task in everyday life?
• If not, it lacks mundane realism
• It is important to ensure tasks reflect everyday life

Question 4

Generalisability

Answer 4

Can the results of the study apply to:
- everyday life
- people (everyone)

Question 5

Validity

Answer 5

Measuring what it intends to
INTERNAL- Does the measurement tool measure what it intends to?
EXTERNAL- ecological- can it apply to all settings?
- population- can it apply to all people?
- temporal- can it apply across time?