Statistics How To

Statistics How To


Alternate Forms Reliability

Reliability and Validity > Alternate Forms Reliability Alternate forms reliability is a measure of reliability between two different forms of the same test. Two equivalent (but different) tests are administered, scores are correlated, and a reliability coefficient is calculated. A…

Bertrand Paradox

Statistics Definitions > The Bertrand Paradox is a prime example of how two words—”random” and “equal probability” are incorrectly used to mean the same thing. The paradox shows that if you don’t define your probabilities well, then the mechanism that…

Asymptotic Normality

Statistics Definitions > Asymptotic normality is a property of an estimator. “Asymptotic” refers to how an estimator behaves as the sample size gets larger (i.e. tends to infinity). “Normality” refers to the normal distribution, so an estimator that is asymptotically…