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Psychology 🧠𝚿
Research methods 📖
Experiment types
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Created by
Hannah Davis
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Cards (12)
A
lab
experiment takes place in a special environment where
different variables
can be carefully controlled for.
Strengths of a lab experiment is that there is a high degree of
control
and
replication.
limitations of lab experiments is there may be
experimenter bias
, and there is
low ecological validity.
A
field
experiment takes place in a
natural environment
but variables are still manipulated by the researcher.
Strengths of a field experiment is it is
naturalistic
with a high
ecological
validity and less likely for demand characteristics.
limitations
of a field experiment is there are
ethical
considerations and lack of control.
In a quasi experiment, the
IV
is not determined by the researcher but exists within a
person.
Strengths of
quasi
experiment s conditions are
controlled.
Limitations of a quasi experiment is there can not be
random allocation
, so
participant variables
can occur.
In
a natural experiment
, the IV is not brought about by the researcher and would have occurred even if the researcher had not been there.
Strengths of a natural experiment is that it avoids ethical issues as nothing is manipulated. There is high
external validity.
Limitations of a natural experiment is that it may not be
replicable
as they are hard to generalise findings and difficult to
randomise