When the article references 1/3 of a “standard deviation”, folks would do well to know what that means statistically.
If pot drops your IQ from 120 to 100 (not unreasonable when high) the formula for that difference, and standard deviation would look like:
100 - 120 /6
or - 3.33
1/3 of a standard deviation is but 1 IQ point as a residual effect. And that goes away after 72 hrs.
or - 3.33
1/3 of a standard deviation is but 1 IQ point as a residual effect. And that goes away after 72 hrs.
I feel like I am high right now. I can't follow what you are saying here.
I have always thought that the order of operations says it should be solved this way...
100 - 120/6
(multiplication and division first) 120 divided by 6 = 20
(addition and subtraction next) 100 minus 20 = 80
Where does 3.33 come in to play? Where does 1 IQ point come into play?
I'm sure you are right and that your goal was to explain to us dummies how standard deviation works but you lost me.