AP statistics chapter 13 by Stats modelling the world third edition by David E. Bock

● Random assignment: is where study participants are randomly assigned to a
study group
● Factors: are the variables that experimenters control during an experiment in
order to determine the population, for example a new drug for amnesia
● Response variable: is the result of the experiment where the explanatory variable
is manipulated
● Subjects: The population on which the treatment is being applied
● Treatment: what is being tested

● retrospective expriments consist by simply observing the population

● prospective studies consist by applying a treatment on the population.