The biggest problem caused by unequal sample sizes is

false
The calculations are extremely difficult.
false
The statistical results are only approximate.
true
Unequal sample sizes result in confounding.
false
Unequal sample sizes indicate a poor experimental design.
Unequal sample sizes cause confounding.
Which of the following eliminates confounding?

true
Unweighted means
false
Weighted means
false
Correction for continuity
Comparing unweighted means eliminates confounding.
Which of the following eliminates confounding?

false
Type I sums of squares
true
Type III sums of squares
Type III sums of squares test an effect while controlling for other effects, thus eliminating confounding.