Research methods.

Question 1

Independent Groups.

Positive + Negatives.

Answer 1

Each participant is randomly allocated to one of the control OR experimental condition, only completing that experiment.

+
Easiest & Quickest.

• Requires more participants.

Question 2

Matched Participants

Positive + Negatives.

Answer 2

Each participant is paired on a particular EV, and each member of the pair is allocated to one of the control or experimental.

+
A large amount of control over a particular EV.

-
Time-consuming.

Question 3

Repeated Measures.

Positive + Negatives.

Answer 3

ALL participants complete ALL conditions in an experiment.

+
Smaller samples can be used.

• Time-consuming (participants have to do multiple conditions).