RM- Reliability of cognitive processes Flashcards
RM- Reliability of cognitive processes
when conducting investigations on cog processing, we use a variety of RMs
As cognitvie processes arent easily observable, we need to use well controlled methods such as experiments which can isolate variables and help us find specific cog processes which influence us
Loftus and palmer
Good:
Manipulate IV, measure DV - reductionist methodology, isolate variable, show cause and effect
No extraneous variables
Good internal validity - testing what we want to test
COntrolled environemnt was really important here bc
The IV was how they WORDED a question asked, only lab experiment would get u this type of control
BAD
Culture complicated - e.g conformity, behaviours different amongst cultures
Not same situation in real life, behaviour repeating, not reliable if can’t replicate
Might not be good for cog proccessing studies, bc the environemnt plays a big part. I.e in yuille and cutshall, they found that in a real life situation, loftus’s findings didnt happen
Real world unpredictable
To make up for aritificiality, they could pick ppt from a natural envronement instead of showing ppt an aritifual scenario. The scenario is not artiifical, increases eco validity
Yuille and cutshall
Good compromise between controlled and applicable to real life
Good
Eco valid. Asked witnesses of a car crash. Can see how the IV (changing wording of question) can manipulate a real situation
Controlled
Still done in controlled setting
Thsi is esp. Important for cog proccessing bc we cant directly observe, so need to be controlled and chage one thing at a time
BAD:
Since they were eyewitnesses, the scneario/ things they saw might actually have been diff
So we dont have total control/ know for sure IV affected DV
