Research methods: experimental methods Flashcards
What is a lab experiment?
-where the researcher manipulated the iv and measured the dv in a controlled environment
What is a strength to a lab experiment?
-fewer ev’s as it is controlled so demonstrates causation
-easily replicated due to standardised procedures
What is a negative to a lab experiment?
-low generaliseablity -artificial setting
What is a field experiment?
-where the researcher manipulates the iv and measured the dv in a natural setting
What is a strength to a field experiment?
-own/familiar environment so usual behaviour
What is a negative to a field experiment?
-harder to control ev’s so no cause/effect established
-less ethical -deception
-invasion of privacy
What is a natural experiment?
-where the iv varies without researcher input and measures the dv
What is a strength to a natural experiment?
-external validity (studying real life issues)
What is a negative to a natural experiment?
-lacks reliability (no control)
-no random allocations to conditions (pre-existing IV)
What is a quasi experiment?
-where no one manipulates the iv and measures the dv
-the iv is a naturally occurring characteristic
What is a strength to a quasi experiment?
-ecological validity (already happened)
-can test things you couldn’t if you wanted to manipulate the iv
What is a negative to a quasi experiment?
-no random allocation of conditions (pre-existing IV)
