====== valueVar() ======

''float **valueVar**(string //question//)''

''float **valueVar**(string //question//, string|array //items//)''

''float **valueVar**(array //variables//)''

Calculates the uncorrected [[http://en.wikipedia.org/wiki/Bias_of_an_estimator#Sample_variance|sample variance]] for the answer codes of all items in a question (e.g. a scale), for selected items, or for a list of variables.

  * //question// -- ID of a question (as a string)
  * //items// -- A list (string or array) of items
  * //variables// -- A list (array) of variable IDs as written in the **Variables Overview**

**Note:** This works in the same way as ''[[:en:create:functions:valuesum|valueSum()]]'' -- the parameters are described in this chapter in detail with various examples.
