1. Review Questions IV
A psychologist suspected that even if only two colours were used in the Droop experiment there
would be both interference and facilitation: that the condition means would be different. To explore
his hypothesis, he tested 10 subjects in the three Droop conditions: control, congruent, and incongruent.
Interference is the difference between the control and the incongruent conditions. Facilitation is the
difference between the control and the congruent conditions. First analyze this as a completely
Randomized Design.
Do the data below support his hypothesis?
control congruent incongruent
Mean
Variance
Now analyze it as a Repeated Measures design.Additionally, the sum-of-squares total was 1210
and the sums-of-squares between-subjects was 570. Include all appropriate descriptive statistics,
figures, tests of assumptions, and test of
hypotheses.