1
Q
What makes an investigation an experimental design?
A
The manipulation of an independent variable (IV) and the use of a control group to compare outcomes.
2
Q
Why is random allocation used in experimental designs?
A
To minimize bias and ensure participants are equally distributed across groups, improving reliability.
3
Q
What is one advantage of using an experimental design?
A
It allows for cause-and-effect relationships to be established between variables.
4
Q
What is one disadvantage of experimental design?
A
It may lack ecological validity, as the controlled environment might not reflect real-life settings.
Psychology
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