Chapter 9: Intro to the Analysis of Variance

pg. 377 - vocab

Analysis of Variance (ANOVA)

The statistical procedure for testing variation among the means of more than two groups.

Within-Groups Estimate of the population variance (S2Within or MSWithin)

Between-groups estimate of the population variance (S2Between or MSBetween)

F ratio

F distribution

F table

S2Within or MSWithin

grand mean (GM) )

S2Between or MSBetween

Between-groups (or numerator) degrees of freedom (dfBetween2)

Within-groups (or denominator) degrees of freedom (dfWithin2)

Planned contrasts

Bonferroni procedure

Post hoc comparisons

Scheffé test

Proportion of variance accounted for (R2)

eta squared (η^2)

Structural model

SSTotal, SSWithin, SSBetween

Analysis of Variance Table