Reaserch Methods Flashcards
What is an experimental method?
Manipulating the IV to see the effects to the DV
What are the 4 types of experimental methods?
Quasi
Field
Lab
Natural
What is a quasi experiment?
An experiment where the IV is the individual differences of the participants
What is a laboratory experiment?
Highly controlled environment (little extraneous variables), researcher manipulates IV to see effects on DV
What is a field experiment?
Natural setting where the researcher manipulates IV to see effects on DV
What is a natural experiment?
IVs are not manipulated by researcher but DV is measured (e.g) earthquake
What are the 4 experimental designs?
Independent groups design
Random allocation
Matched Pairs design
Repeated measures design
What is the independent groups experimental design?
Participants are put into groups and only represent one condition of the experiment
What is the Matched pairs design?
Participants are matched with a relatively similar counterpart biased on a certain variable (e.g iq) and labelled A and B both assigned different conditions
What is the repeated measures design?
Participants take part in all different conditions of the experiment?
What is the random allocation design?
Where participants take part in one condition but are chosen at random
What are the 6 types of observations?
Naturalistic
Controlled
Covert
Overt
Participant
Non-participant
What are positives and negatives to naturalistic observations?
-don’t establish a cause effect relationship
-lack control, extraneous variables
-can’t replicate/ give reliability
+high external validity, generalisability
What are positives and negatives to controlled observations?
-don’t establish cause/effect relationship
-less natural so less generalisable
+reduces extraneous variables so replication is possible
What are negatives and positives of a covert observation?
Participants are unaware they are being observed
-ethical issues (no informed consent)
+increased internal validity (normal behaviour presented)