A researcher tests groups of high, medium and low anxiety participants who have been permitted either low sleep or normal sleep before learning and being tested on a memory list of 15, 20, 30 or 45 items.
-5) In the design described above if the MS_anxiet_y was 7.93 what was the sum of squares for the anxiety effect?

Question

Quizplus · Accepted Answer

The sum of squares for the anxiety effect can be found by multiplying the MS_anxiet_y by the number of participants in each anxiety group (3) and subtracting the grand mean squared times the total number of participants (12). This calculation gives a sum of squares for anxiety of 15.86.

A Researcher Tests Groups of High, Medium and Low Anxiety