Experimental methods
- Created by: caitlinca
- Created on: 11-03-17 13:38
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- Experimental methods
- Natural experiments
- IV is unplanned
- Occurred because of naturally occurring event
- Quasi experiments
- Ps are often matched in some way
- No control condition
- No control over variables
- Makes pinpointing a causal relationship more difficult
- IV is unplanned
- Laboratory experiments
- Control
- Extraneous variables are held constant so the DV can only be due to the manipulation of the IV
- Also accomplished by the use of a control group and 1< experimental group
- Randomisation
- Ps are randomly allocated to conditions
- Stimuli can be randomly ordered
- Direct manipulation of an independent variable
- Effect of IV is measured by DV (dependent variable)
- Control
- Quasi experiments
- Ps are often matched in some way
- No control condition
- Field experiments
- Direct manipulation of an independent variable
- Effect of IV is measured by DV (dependent variable)
- Take place in a natural environment
- Natural experiments
- IV is unplanned
- Occurred because of naturally occurring event
- No control over variables
- Makes pinpointing a causal relationship more difficult
- IV is unplanned
- Ps are often unaware of participation
- Natural experiments
- Direct manipulation of an independent variable
- Natural experiments
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