experiments Flashcards
(15 cards)
an experiment exists when
the researcher manipulates or changes one variable
4 types of experiment
laboratory
field
quasi
natural
a laboratory experiment is conducted in
a carefully controlled environment
a field experiment takes place in
a natural environment
a natural setting
a quasi experiment has
no random allocation to conditions
and no directly controlled manipulation of the IV
a natural experiment is conducted when
it is not ethically or practically possible to deliberately manipulate the IV
4 lab experiment strengths
high control over variables
can infer cause and effect
can easily be replicated
ethical
1 lab experiment weakness
an artificial situation so less mundane realism and ecological validity
2 field experiment strengths
natural behaviour and environment
greater mundane realism and ecological validity
2 field experiments weaknesses
less control over variables
less ethical
a strength of natural experiment
enables investigations of real problems
a weakness of natural experiment
random allocation not possible
a strength of quasi experiment
allows comparison between types of people
a weakness of quasi experiment
random allocation not possible
which 2 experiments are very similar
natural and quasi
