Examlex
All current factory coolants are ethylene glycol based.
Ex Post Facto
A study or analysis conducted after an event has occurred, used to discover causes even though variables are not manipulated by the researcher.
Pretest Posttest
A research design that measures the effects of an intervention by comparing subject scores before and after the intervention.
Experimental Design
The blueprint for conducting a scientific study to ensure that it is valid and reliable; it includes planning, conducting, and analyzing an experiment.
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