Re: Type II and III sum of square in Anova (R, car package)

Amasco Miralisus wrote:

< snip >
2. Now more specific question. Type II sum of squares is not well suited
for unbalanced ANOVA designs too (as stated in STATISTICA help), therefore
the general rule of thumb is to use Anova() function using Type II SS for
only for balanced ANOVA and Anova() function using Type III SS for
unbalanced ANOVA? Is this correct interpretation?

I give a general discussion of types of sums of squares in analysis of
variance (including discussion of which type of sum of squares is
"best") at

http://www.matstat.com/ss/

Don Macnaughton

Donald B. Macnaughton
donmac@xxxxxxxxxxx
MatStat Research Consulting Inc.
Toronto, Canada

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