Types of Experiment

Question 1

What is a Quasi-experiment?

Answer 1

• Iv is based on an existing difference between pps. No random allocation
• Controlled conditions

Question 2

What is a Natural Experiment?

Answer 2

• IV changes without experimentor’s intervention, reasearcher records effects on the DV.
• No random allocation
• Provides opportunities for research that otherwise may not be undertaken for ethical or practical reasons. High external validity
• Naturally occurring event may only happen very rarely

Question 3

What is a strength and a limitation of Lab Experiments?

Answer 3

Strength: Maximum control
Weakness: Contrived setting

Question 4

What is a Strength and a Limitation of Field Experiment?

Answer 4

Strength: More natural setting
Weakness: Less control of extraneous variables

Question 5

What Defines an Experiment?

Answer 5

• All experiments involve a change in the IV and the effect on the DV is recorded/ measured