Strangely, I love this part of my job...
Colleague’s Question:
Can you add to the green and red zones for the mean, SD, and SD/mean the criteria for classifying as red or green?
My Response:
I’m not sure how to do that concisely, while being more descriptive than I’ve already been.
Within each survey (students, parents, staff), I took the mean of the means for all questions. I took the respective standard deviation for the mean of all the means. Then I highlighted all individual question means that were at least one standard deviation above or below the mean of the means – green for above and red for below.
I did a similar thing for the standard deviations and standard deviations divided by means. I took the mean of all the standard deviations, and then took the standard deviation of that mean – highlighting standard deviations that were at least a standard deviation above or below the mean of all the standard deviations...
It all sounds like double-speak, but it makes sense. The goal was to highlight any descriptive statistic that was at least a standard deviation above or below the same kind of statistic within its respective survey.
3 comments:
Hmmmmm.... at first I thought I was clever because I understood what you were saying in this post - however, having now read the statistical report - (note that I said read and not comprehended) I bow mercifully at your feet, oh Sultan of Statistics, and beg for a little enlightenment.
For some reason, in this context, my original question sounds more like a quote from "Airplane".
Joe, surely you can't be serious.
(Hmmm...doesn't work quite as well in written form.)
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