1. Students were given different drug treatments before revising for their exams. Some were given a memory drug, some a placebo drug and some no treatment. The mean exam scores are shown below for the three different groups:

1. From the table above, interpret the results. [1]

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1. Mention if there is a need to do further testing? Explain your answer. [1]

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Exam Score (%) Sum of Squares df Mean Square F Sig. Between Groups 11155.600 2 5577.800 50.160 .000 Within Groups 1334.400 12 111.200 Total 12490.000 14