1. A McGill University student who computed a contrast F is advised by her instructor to look at the alerting r before estimating the effect size r from  Why? 2. A University of Maryland–Baltimore...

1. A McGill University student who computed a contrast F is advised by her instructor to look at the alerting r before estimating the effect size r from
 Why?

2. A University of Maryland–Baltimore County student who used a repeated-measures design in his research is advised by his instructor to compute a contrast using L scores. What are they, and how can the student form a set of lambda weights?