ABSTRACT
Thestatisticsdescribedinthischapteraredesignedtoprovideveryconcise descriptionsofdistributionsofscores.Forexample,adistributionmightbedescribedwithjusttwovalues-oneforitsaverage,whichindicatesthelocationof thecenterofadistribution,andanotherforitsvariability,whichindicatesbyhow muchthescoresdifferfromoneanother.
