A researcher conducts an experiment comparing four treatment condition with n=12 scores in each condition. a. If an independent-measures design were used, how many individuals would be needed for the...

A researcher conducts an experiment comparing four treatment condition with n=12 scores in each condition.

a. If an independent-measures design were used, how many individuals would be needed for the study and what would the degrees of freedom values for the F-ratio be?

b. If a repeated-measures design were used, how many individuals would be needed for the study and what would the degrees of freedom values for the F-ratio be?