psych 1.3 Psychology & The Experimental Method

iv

cause

dv

effct

experimental control

when a study prevents other variables other than those being studied from affecting the outcome

placebo effct

when a person acts differently because they expect a certain outcome

placebo

close to teh iv but missing the key component of the iv

experimental group

gets the iv

contorleld group

placebo

confounding variblaes

varibes otehr then the iv that could impact the dv (researcher unable to revmoe)

singleblind

participatns unaware if they are in contoleld or experiment grup

double blind

participants and experimenters unaware of the groups control or experiment

-reduce unintentiaonl biasq

randoms assigment

participants were randomly assigned to be in controlled or experiment group

quasi experiment

experiment that doesn’t include random assignment

due to ethical or practical reasoning

corrolational stdy

doesn’t show cause and effect

collect data through survey naturalistic observation, interviews