Multicollinearity statistics with SPSS

“Can you explain multicollinearity statistics?” she asked. Why, yes, yes I can. First of all, as noted in the Journal of Polymorphous Perversity, “Multicollinearity is not a life-threatening condition except when a depressed graduate student employs multiple, redundant measures.” What is multicollinearity, then, and how do you know if you have it? Multicollinearity is a…

The rumors of our sucking at math have been greatly exaggerated

Question authority. Whenever I hear authoritative statements made that don’t fit with the world I see around me, I try to follow up. How many times have we been told that the U.S. is just terrible in math, we are falling behind educationally, China and India are eating our lunch – deservedly so, because our…

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What I learned about statistics from martial arts

I’m doing a workshop at the San Diego SAS users group meeting on Wednesday and  had suggested opening the session with a clip of my daughter’s last amateur fight.  Someone politely commented, “Uh, I guess that would be okay, if it was, uh, relevant.” Fair question, how can martial arts be related to statistics or…