
1) Aptitude test score 2) Test score range
Found on
https://www.crosswordclues.com/clue/stanine

Stanine (STAndard NINE) is a method of scaling test scores on a nine-point standard scale with a mean of five and a standard deviation of two. Some web sources attribute stanines to the U.S. Army Air Forces during World War II. Psychometric legend has it that a 1-9 scale was used because of the compactness of recording the score as a single digit ...
Found on
http://en.wikipedia.org/wiki/Stanine

one of the steps in a nine-point scale of standard scores.
Found on
http://ericae.net/edo/ed315430.htm

A stanine (which is abbreviated from 'standard nine') is a standard score ranging from 1 to 9. Stanines are simple to use and place small differences of score in perspective. Stanines have a mean of 5 and a standard deviation of 2.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
No exact match found.