In any scientific research, there are typically two variables of interest: independent variables and dependent variables. In forming the backbone of scientific experiments, they help scientists ...

Raking is the standard weighting method used by Pew Research Center and many other public pollsters. In this study, the weighting variables were raked according to their marginal distributions, as ...

March 9, 2021 Michael Yudell, PhD, a professor in the Dornsife School of Public Health, wrote a March 9 Public Health Post piece about the misuse of racial categories in biomedical research. "Many ...

Some recent research has suggested that macroeconomic variables, such as output and inflation, can improve interest rate forecasts. However, the evidence for this puzzling result is based on ...

Letters to the editor Sex as a research variable The article about using animal models in human health applications was informative (C&EN, March 20, page 30).

The Meaning of Research Findings Valid research confirms or dis-confirms probable relationships among variables. Research findings themselves have no other meaning and no wisdom.

Much recent research on leadership has concerned moderator (contingency) variables. This research has yielded equivocal and/or conflicting results. Conceptually distinct variables have been treated as ...