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The Anti-Kickback Statute (AKS) is an American federal law prohibiting financial payments or incentives for referring patients or generating federal healthcare business. The law, codified at 42 U.S. Code § 1320a–7b (b), [1] imposes criminal and, particularly in association with the federal False Claims Act, civil liability on those who ...
In statistics, econometrics, epidemiology and related disciplines, the method of instrumental variables ( IV) is used to estimate causal relationships when controlled experiments are not feasible or when a treatment is not successfully delivered to every unit in a randomized experiment. [1]
t. e. Action research is a philosophy and methodology of research generally applied in the social sciences. It seeks transformative change through the simultaneous process of taking action and doing research, which are linked together by critical reflection. Kurt Lewin, then a professor at MIT, first coined the term "action research" in 1944.
Log-linear analysis. Log-linear analysis is a technique used in statistics to examine the relationship between more than two categorical variables. The technique is used for both hypothesis testing and model building.
Euclidean distance. In mathematics, the Euclidean distance between two points in Euclidean space is the length of the line segment between them. It can be calculated from the Cartesian coordinates of the points using the Pythagorean theorem, and therefore is occasionally called the Pythagorean distance . These names come from the ancient Greek ...
Kullback–Leibler divergence. In mathematical statistics, the Kullback–Leibler ( KL) divergence (also called relative entropy and I-divergence [1] ), denoted , is a type of statistical distance: a measure of how one probability distribution P is different from a second, reference probability distribution Q. [2] [3] A simple interpretation of ...
Intervention mapping [1] is a protocol for developing theory -based and evidence-based health promotion programs. Intervention Mapping describes the process of health promotion program planning in six steps: the needs assessment based on the PRECEDE-PROCEED model. the definition of performance and change objectives based upon scientific ...
t. e. In statistics, the Bayesian information criterion ( BIC) or Schwarz information criterion (also SIC, SBC, SBIC) is a criterion for model selection among a finite set of models; models with lower BIC are generally preferred. It is based, in part, on the likelihood function and it is closely related to the Akaike information criterion (AIC).
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