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MERLOT II


    

Comment


Material:

Visual Analysis of Variance (ANOVA)

Rating: 5 stars
Used in Course: Used in course
Submitted by: Rodney McFadden (Student), Dec 15, 2003
Comment: What a great tool! An analysis of Variance (ANOVA) is a
statistical method for making simultaneous comparisons
between two or more means; a statistical method that
yields values that can be tested to determine whether a
significant relation exists between variables.

Well, now that we've got the dictionary definition out
of the way....

An ANOVA gives you an estimate of whether two (or more)
groups are likely to be mathematically related.

One of the favorite tricks of those who deliberately
dissemble is collecting data from two (or more) groups
and presenting results without checking to see if the
groups are in fact are related. More commonly stated:
they compare apples an oranges. ANOVA is *one* method
of determining if the two groups should be related.

This tool allows the results of an anova to be
calculated and displayed visually.

Technical Remarks:

I spent ~ 30 minutes 'tinkering' with the program.