research methods from poster Flashcards
strengths of true
4
gets comparspm
csn be replicated (high internal validity
lillte estraneuous)controlled contidions
objective cause/affect answers
true
limitations 4
needs….
limited external validity
ethical constraints (manipulating iv)
needs resources
artifical envormoent (eco)
natural
strenghts
good for l..
long
high eco validity
ethical
good for large scale studies
shows longitudinal affects
reduces demand
natural weaknesses
low internal validity
cant replicate
no random assignment (selection bias, pre-existing groups)
measurment issues/inconsistancies (no iv controlled)
limit of investingatio (cant change iv)
quaise strenghts
practical and feasabke
high external valoidity
ethical
diverse and existing groups
can also chanhc iv
quaise limitations
confounding variables
lack of internal validity
not generalisable
not replicable
regression of mean
lab strnghrs
high inernal valodity
replicable
no extranwour variables
can find cause and affect
all of these experiemtns give
quantitive data
lab weaknesses
low eco validity
cant control individual diffrences
demand
ways to do an experiment
repeated measxures
matched pairs
independant sample design
field streignts
gives..
can use
3
qualititiva (body languyage) and wuantitive data
high eco validity
can use naive participants
fiels weaknesses 3
artificial tasks
conounding variables
ethical conserns since participants dont always know they are being watched, cant give consent
if they are not true or lab thy are
happening in natural envirpment