Posted by
Mike on
Oct 16, 2016; 5:57pm
URL: http://spssx-discussion.165.s1.nabble.com/Undefined-Mauchly-s-Test-tp5733212p5733271.html
On Sunday, October 16, 2016 2:42 AM, David Marso wrote:
> AWESOME Mike! Great historical recap.
Thank you for the kind words. But I'm still trying to find
when repeated measues ANOVA appeared in its current
form (damned OCD! ;-). I do know how the form of the
correlated groups t-test got into its current form.
[snipped Wilk's description of multidimensional probability
distributions for different tests]
> "What this translates into is unclear but if one meditates on it like
> a Zen koan, I'm sure that enlightenment will eventually come. ;-) "
>
> Isn't is f'ing obvious?
> Don't need no skinkin koan.
> Start with 2D, think about it, do 3D think about it, try 4D if your
> head
> doesn't explode then do a recursive thing with 4+, dose on some
> psychedelics
> and you'll find it ;-)))).
Fisher, who had poor vision but strong visual-spatial imagination,
could probably work it out in his head without the benefit of 'shrooms
but would still have problems translating it into ordinary English.
The problem is going beyond the 4th dimension to whatever the
k-th dimension is. In grad school (the 1970s), my experimental
design prof claimed to be doing work on the perception of 4D
hypercubes -- I say "claimed to be doing work" because I never
understood what he meant and apparently most other grad students
felt the same way which meant that very little research got done --
so, he was made director of graduate studies in the psych dept. ;-)
Back then, there were folks who did various drugs and I think they
lost focus while doing psychedelics but I do know a couple of folks
who would toke up before statistical analysis by hand (I don't
know how they did it but one guy who was stoned all the time
got his Ph.D. in clinical psych in three years -- I don't recommend
being stoned all of the time as a way of getting through grad
school). So, though drugs might be useful, meditation or deep
thought might be a more useful procedure to use.
-Mike Palij
New York University
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