ANOVA

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.


References:

Analysis of Variance for FMRI Data by B. Douglas Ward and Gang Chen.  http://afni.nimh.nih.gov/afni/doc/manual/ANOVA

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