Provides data and answers questions about relationships among measured variables. Also called traditional experimental approach.
Quantifiable likelihood chance of the occurrence of an event expressed as odds, or a fraction of 1.
A variable whose effect on the response variable cannot be separated from the effect of the explanatory variable on the response variable. Note: Usually confounded variables are lurking variables but only a few lurking variables are also confounded.
The probability that an event will occur given that one or more other events have occurred