Related Articles
t-test
The t-test uses the t-distribution (a sampling distribution of t) as a method of model comparison when you are evaluating a complex model against the empty model. It is very similar to using the F-distribution for model comparison, and, actually, ...
F-Distribution
The F-Distribution is a probability distribution that models the sampling distribution of F under the empty model (the null hypothesis that there is no effect of the explanatory variable); this theoretical distribution takes into account both model ...
f() or fVal()
The f() function (and, similarly, the fVal() function) will calculate the F value for a model. Example 1: Below are various methods for indexing the model in the argument of the f() function (they will all produce the same output). For any of these, ...
Data Generating Process (DGP)
Data Generating Process (DGP) The Data Generating Process (DGP) refers to the underlying mechanism—real or hypothetical—that produces the data we observe. A DGP specifies how variables are related, how randomness enters the system, and how observed ...
Quantitative Variables
A quantitative variable is a variable that measures a numerical amount or quantity. Quantitative variables answer questions like “how much?” or “how many?” Examples of Quantitative Variables Variable Example Values Height 62 inches, 70 inches Age 14 ...