The more I read about Charles Murray, the more I am angry, alarmed, and disturbed....

[Igel]

11. A stanine is a standard, albeit a bit dated, way of reporting results.

It's not necessarily related to IQ.

It's fairly straightforward to go from percentile, decile, etc., to stanines. (Not so easy going back--the scale's lossy.)

When I took ed psych to prepare for entrance to a teacher's preparatory program a number of years ago it was considered a required skill to be able to norm tests, calculate and interpet standard deviations (along with skew), and understand reporting in various ways (including stanines).

Now I find that older teachers have forgotten this and newer teachers often can't say what the difference between mean and median is, much less worry about measures of dispersion and using trimmed means to reduce the effect of outliers. Excel has taken away any need for comprehension. That administrators are simply teachers promoted beyond their level of first major incompetence just adds to the inanity.