help understand which test for which situation (stat, anova, chi etc)

Discussion in 'Step I' started by peter90036, Jun 15, 2008.

  1. peter90036

    peter90036 not out fishing

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    i cant understand + remember what test to pick for what situation
    anova, chisquare, matched pairs, t tests, etc

    do you have an outline with examples that helps understand all this?
     
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  3. It'sElectric

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    t-test: compares 2 means
    ANOVA: compares 3 or more means
    Chi Square: compares percentages/proportions rather than actual means
     
  4. Instatewaiter

    Instatewaiter But... there's a troponin

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    what he said ^
     
  5. Helo

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    d
     
    #4 Helo, Jun 15, 2008
    Last edited: Aug 8, 2010
  6. luhando

    luhando Senior Member

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    the important logical step in differentiating chi-square from the other two is that chi-square deals with qualitative variables (ie disease or no disease) while the other 2 deal with quantitative variables (ie mean BMI).
     
  7. It'sElectric

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    You're correct, but I'm just trying to make it as basic and to the point as possible - which is pretty much how I'm guessing any question on Step 1 referencing either of those 3 items would be. I think "mean" is the opportune word that should set off a red flag in your brain differentiating t-test/anova from chi square.
     
  8. 45408

    45408 aw buddy

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    and the chi-square looks like a % sign to me, so that's how I know what it's for :D
     
  9. peter90036

    peter90036 not out fishing

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    thanks, this is the stuff i'm looking for :)
     
  10. luhando

    luhando Senior Member

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    haha...most def.

    just trying to add to your wisdom :)
     

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