Types of Experiments
- Created by: balloonhipster
- Created on: 29-05-20 12:06
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- Types of Experiments
- Laboratory Experiments
- Conducted in highly controlled environment
- Strengths
- High control over extraneous variables
- Any effect on the DV is the result of IV
- Replication is more possible
- Results therefore valid
- High control over extraneous variables
- Limitations
- Can't be generalised
- Low external validity
- Demand Characteristic
- Can't be generalised
- Field Experiments
- IV manipulated in a natural and everyday setting
- Strengths
- Experiments more realistic
- High external validity
- Experiments more realistic
- Limitations
- Lack of control over extraneous variables
- Cause and Effects harder to establish
- Precise replication often not possible
- Unethical
- Lacks Informed Consent
- Invasion of privacy
- Lack of control over extraneous variables
- Natural Experiments
- Researcher takes advantage of a pre-existing IV
- Strengths
- Provide opportunites for research that may not be available for ethical or practical reasons
- High external validity
- Limitation
- Naturally occuring event rare
- Reduces opportunities for research
- Hard to generalise
- Hard to be sure if IV affects the DV
- Naturally occuring event rare
- Quasi Experiements
- Have an IV based on a difference e.g. age, gender
- Strengths
- High Control over extraneous variables
- Any effect on the DV is the result of the IV
- Replication is more possible
- Results more valid
- High Control over extraneous variables
- Limitations
- Can't randomly allocate participants to conditions
- May be confounding variables
- Can't randomly allocate participants to conditions
- Laboratory Experiments
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