UNIT 5: EX POST FACTO RESEARCH exam with 100% correct answers already graded A+

ex post facto observing what has already happened ex post facto features no manipulation of iv, report of what happened, causation cannot be demonstrated ex post facto uses used in situations where manipulation is imposible, where situation has occurred ex post facto stages define problem, state hypothesis, select sample, identify criteria for classification, gather data, compare data, analyse ex post facto approaches prospective, retrospective prospective approach participants who differ in an iv and study how they differ in a dv retrospective approach participants who differ in an dv and study how they differ in a iv retrospective study aka correlational study retrospective designs simple, single group, quasi control group simple retrospective design measuring dv in a group and then looking for possible explanations for that dv retrospective with quasi control group look for people with same dv; key group; and others with similar characteristics; quasi control; and measure covariations among them retrospective with quasi control group benefit there is more control single group retrospective design dv and iv are selected regarding representativeness, correlational technique prospective study aka criterion group prospective study study in which subjects are followed to observe future outcomes prospective designs simple, factorial, single group simple prospective designs create groups according to iv and then gather info about dv, natural groups with no manipulation factorial prospective design same as simple but with two or more iv single group prospective design one group with large sample developmental designs cross-sectional, longitudinal, sequential ]