nonexperimental
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nonexperimental — [spelling only] … English World dictionary
nonexperimental — adjective Not experimental (of a research method) … Wiktionary
nonexperimental — non ex•per i•men′tal adj. ly, adv … From formal English to slang
nonexperimental — adj.; nonexperimentally, adv … Useful english dictionary
Econometrics — Economics … Wikipedia
Causality — (but not causation) denotes a necessary relationship between one event (called cause) and another event (called effect) which is the direct consequence (result) of the first. [http://dictionary.reference.com/search?q=Causality x=35 y=25 Random… … Wikipedia
Sensitivity analysis — (SA) is the study of how the variation (uncertainty) in the output of a mathematical model can be apportioned, qualitatively or quantitatively, to different sources of variation in the input of a model Saltelli, A., Ratto, M., Andres, T.,… … Wikipedia
Study design — A study design is an analytic approach to conduct an epidemiological investigation, such as a clinical trial. Types of designSome of the most popular designs are sorted below, with the ones at the top being the most powerful at reducing observer… … Wikipedia
Confounding — factor redirects here. For other uses, see Confounding factor (disambiguation). In statistics, a confounding variable (also confounding factor, lurking variable, a confound, or confounder) is an extraneous variable in a statistical model that… … Wikipedia
Long-term experiment — Several agricultural field experiments have run for more than 100 years, but much shorter experiments may qualify as long term in other disciplines. An experiment is a set of actions and observations , implying that one or more treatments… … Wikipedia
