Moses extreme reactions

Photo by Flickr user mac steve. Click for sourceSome statistical tests with wonderful names. From SPSS, one of the standard data analysis software packages used by psychologists.

Kendall’s W
Cochran’s Q
LSD post-hoc
Two-step cluster
Fisher’s exact test
Wald-Wolfowitz runs
Moses extreme reactions

UPDATE: Thanks to everyone who has added to our list of wonderfully named statistical tests used by psychologists. Grabbed from the comments, they include:

Tukey’s Honest Significant Difference
Smoothed Bootstrap
Jackknife Variance
Roy’s Largest Root


  1. StunnedMullet
    Posted April 19, 2009 at 10:56 pm | Permalink

    I no longer use SPSS, I’m quite happy with R
    How about “smoothed bootstrap” and “jackknife variance”?

  2. Rob Knell
    Posted April 20, 2009 at 7:13 am | Permalink

    How about Tukey’s Honest Significant Difference?

  3. pibloktoq
    Posted April 20, 2009 at 10:00 am | Permalink

    Don’t forget Roy’s Largest Root.

  4. Posted April 20, 2009 at 3:46 pm | Permalink

    Greenhouse-Geisser epsilon correction (when appropiate! in ANOVA´s)

  5. Posted April 20, 2009 at 4:57 pm | Permalink

    Excellent stuff. “Fisher’s exact test” sounds like a magic spell from Dungeons & Dragons.

  6. ed ersatz
    Posted April 21, 2009 at 1:51 pm | Permalink

    Many students think that the kolmogorov-smirnov is something you drink.

  7. langvir
    Posted April 23, 2009 at 3:48 pm | Permalink

    There’s also one of my favorites: Cronbach’s alpha

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