Class notes repeated measures anova

5 important questions on Class notes repeated measures anova

With repeated measures, what are the explained variances, and the unexplained variances?

  • Variance created by manipulation is explained variance.
  • variance created by unknown factors is unexplained variance

What is the power of repeated measures?

  • The unexplained variance should be a bit smaller because were using the same participants
  • this causes control of a lot of noise.

What split in total variance can you make with a repeated measure design?

  • Variance within subjects
  • variance between subjects
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Which split of variance within subjects can be made?

  • Variance due to effect of experiment
  • unexplained variance

What does the assumption of sphericity mean?

The variance of the difference in scores between conditions should be equal.

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