OCR A-Level Psychology H567
Research Methods and Techniques
Planning and Conducting Research
Data Recording, Analysis and Presentation
Report Writing and Scientific Communication
Practical Activities and the Nature of Science
Mathematical Requirements for Research Methods
Studying and Evaluating the Core Studies: The Common Framework
Core Studies: Social Area
Core Studies: Cognitive Area
Core Studies: Developmental Area
Core Studies: Biological Area
Core Studies: Individual Differences Area
Areas and Perspectives in Psychology
Debates in Psychology
Practical Applications of Psychology
Issues in Mental Health
Child PsychologyApplied option
Criminal PsychologyApplied option
Environmental PsychologyApplied option
Sport and Exercise PsychologyApplied option
Methodological Issues and Debates Running Through Applied Psychology
Practical Activities and the Nature of Science
Cause and effect, falsification and replicability
- 3 things to know
- Component 01
Overview
Recall questions on establishing cause and effect, why correlation does not show causation, falsification and unfalsifiable theories, which hypothesis is tested, and what makes a study replicable.
What you need to know
Answer each one before you reveal it.
Which research method allows cause and effect to be established, and why?
Define falsification.
Questions from this subtopic
Each one with the model answer underneath.
- 1
What does it mean to establish a cause-and-effect relationship?
Model answer
It means showing that a change in one variable is directly responsible for a change in another.
- 2
Which research method allows cause and effect to be established, and why?
Model answer
The experiment, because the independent variable is deliberately manipulated while other variables are controlled, so any change in the dependent variable can be attributed to it.
- 3
Why does a strong correlation between two variables not demonstrate cause and effect?
Model answer
Neither variable has been manipulated and extraneous variables are uncontrolled, so a third variable may be responsible or the causal direction may be reversed.
- 4
Define falsification.
Model answer
The principle that a theory is only scientific if it is capable of being proved wrong by evidence.
- 5
Why do scientists try to disprove rather than confirm their theories?
Model answer
No number of confirming observations can prove a general theory true, but a single disconfirming result is enough to show it is false.
- 6
Why is a theory that can explain every possible outcome regarded as unscientific?
Model answer
Because no observation could ever contradict it, so it cannot be tested or falsified.
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