1
Q
Independent Groups.
Positive + Negatives.
A
Each participant is randomly allocated to one of the control OR experimental condition, only completing that experiment.
+
Easiest & Quickest.
- Requires more participants.
2
Q
Matched Participants
Positive + Negatives.
A
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.
3
Q
Repeated Measures.
Positive + Negatives.
A
ALL participants complete ALL conditions in an experiment.
+
Smaller samples can be used.
- Time-consuming (participants have to do multiple conditions).
