Experimental methods- research methods

Question 1

Summary of labatory experiment

Answer 1

-controlled conditions
-manipulates IV
-measures DV

Question 2

Summary of field experiments

Answer 2

-Natural conditions
-Manipulate IV
-Measures the DV

Question 3

Summary of natural experiments

Answer 3

-Natural conditions
-IV is naturally occurring e.g. unemployment and earthquake
-Measures the DV

Question 4

Summary of Quasi Experiment

Answer 4

-Controlled and natural conditions
-IV is naturally occurring difference between people e.g. gender age or personality
-Measures the DV

Question 5

Strength of lab experiments

Answer 5

-high degree of control of extraneous variables
-prevent extraneous variables becoming confounding
-validity as cause an effect can be drawn

Question 6

Weakness of lab experiments

Answer 6

-lack external validity and ecological validity
-demand characteristics can be seen

Question 7

Weakness of field experiments

Answer 7

-less control from extraneous variables so can become confounding so no clear cause and effect
-ethical issues as cannot give informed consent

Question 7

Strength of field experiments

Answer 7

-higher level of ecological validity

Question 8

Strength of natural experiments

Answer 8

-high level of external validity and ecological validity
-unique insights gained because can conduct experiments where else it may be unethical or practical constraints

Question 9

Weakness of natural experiment

Answer 9

-no control of extraneous and so confounding variables so cause and effect cannot be drawn
-naturally occurring events may happen very rarely so limited generalisation

Question 10

Strength of quasi

Answer 10

-compare different types of people easily where else may not be ethical

Question 11

Weakness of quasi

Answer 11

-since IV is already pre decided researchers less sure that IV alone will have caused the effect
-environmental factors may play role in outcome