variables
anything that’s not a constant
independent variable
any variable the researcher manipulates
dependent variable
what happens to the dependent when you manipulate IV
constant
stays the same throughout the experiment
within groups experiment
everyone receives every level of IV
counterbalancing
random assignment in order of presentation
quazi experiment
resembles an experiment except that one of the variables in the experiment cannot be randomly assigned
extraneous variables
variables not measuring, not interested in, but related to your research goal and variables and could potentially effect your results