3. Types Of Experiment AO1

Question 1

What is a laboratory experiment?

Answer 1

A controlled environment where extraneous and confounding variables can be regulated, participant goes to researcher, the IV is manipulated and the effect of the DV is recorded

Question 2

What is a field experiment?

Answer 2

A natural setting, researcher goes to participant, the Iv is manipulated and the effect on the DV is recorded

Question 3

What is a natural experiment?

Answer 3

The experimenter does not manipulate the IV. The IV would have varied even if he experimenter wasn’t interested. DV may be naturally occurring or may be measured by the experimenter

Question 4

What is a Quasi-experiment?

Answer 4

IV is based on a pre-existing difference between people (e.g. Age or gender), no one has manipulated this variable, it simply exists - DV may be naturally occurring (e.g. Exam results) or may be measured by the experimenter

Question 5

When is a directional hypothesis used?

Answer 5

When previous research suggests how the results will go