Parameter
Next Section: Statistics
A parameter is a numerical quantity measuring some aspect
of a
population of scores. For
example, the mean is a measure of
central tendency.
Greek letters are used to designate parameters.
At the bottom of this page are shown several parameters of great
importance in statistical analyses and the Greek symbol that
represents each one. Parameters are rarely known and are
usually estimated by
statistics
computed in
samples. To the right
of each Greek symbol is the symbol for the associated
statistic used to estimate it from a sample.
Next Section: Statistics