AQA A-Level Psychology 7182
Social Influence
Memory
Attachment
Approaches in Psychology
Biopsychology
Clinical Psychology and Mental Health
Research Methods
Scientific Processes
Quantitative and Qualitative Data
Data Handling and Analysis
Inferential Testing
Issues and Debates in Psychology
RelationshipsOption 1
GenderOption 1
Cognition and DevelopmentOption 1
SchizophreniaOption 2
Eating BehaviourOption 2
StressOption 2
AggressionOption 3
Forensic PsychologyOption 3
AddictionOption 3
Explanations for Nicotine AddictionOption 3
Scientific Processes
Variables
- 2 things to know
- Paper 2
Overview
The independent and dependent variables, and what separates a confounding variable from an extraneous one.
What you need to know
Answer each one before you reveal it.
What separates a confounding variable from an extraneous one?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What is an independent variable?
Model answer
The variable that is manipulated or changed by the researcher to observe its effect on another variable.
- 2
What is a dependent variable?
Model answer
The variable that is measured by the researcher to assess the effect of the independent variable.
- 3
Define extraneous variables.
Model answer
Variables other than the IV that could potentially affect the DV if not controlled.
- 4
What does manipulation of variables mean in experimental research?
Model answer
The deliberate changing of the independent variable by the researcher to create different experimental conditions.
- 5
Why do researchers manipulate the independent variable?
Model answer
To create different experimental conditions so they can observe the effect of the IV on the DV.
- 6
What is meant by control of variables?
Model answer
Keeping extraneous variables constant across conditions so that any change in the DV can be attributed to the IV.
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