An ANOVA (ANalysis Of VAriance), not to be confused with a nova, is a hypothesis testing procedure for use with two or more groups of data. 

Within-Group - values obtained from one group (factor level)

F-Distribution - The distribution used for determining the significance in ANOVA.

Sum of Squared Deviations - A quantity that is obtained by squaring and adding the differences between a group of values and their mean.    SUM((X¡ - mean)²)

Eta Squared - the Correlation Ratio also known as R², the Proportion of Variance Accounted For.

Independent Variable - A variable that is manipulated by the researcher.

Factor - One of the independent variables.

Repeated Measures - The same participants (subjects) being repeatedly measured.


Analysis of Variance for FMRI Data by B. Douglas Ward and Gang Chen.

Statistics for Psychology, 2nd Ed.  Arthur Aron and Elaine N. Aron.  Prentice Hall 1999.  ISBN 0-13-914078-6.