has part scalar measurement datum continuous variable "Time to solve an anagram problem" is continuous since it could take 2 minutes, 2.13 minutes etc. to finish a problem A continuous variable is one for which, within the limits the variable ranges, any value is possible. Alejandra Gonzalez-Beltran Orlaith Burke Philippe Rocca-Serra http://davidmlane.com/hyperstat/A97418.html http://udel.edu/~mcdonald/statvartypes.html categorical variable variable ready for release