variables Flashcards
definition of operationalisation
how you plan to measure and thus define your variable
definiton of independant variable
the variable which the researcher manipulates
definition of dependant variable
the variable which will be affected by the IV. This is measured
definition of controlled variable
the variable which the researcher will successfully ensure does not effect the DV
definition of extraneous variable
a nuisance variable which doesn’t not vary systematically with the DV
definition of cofounding variable
a nuisance variable which does vary systematically with the IV meaning we don’t know what caused the change in the DV
situational examples of cofounding variables
noise
temperature
measurement error examples of cofounding variables
invalid test
example of extraneous variable due to participant differences
age or gender