Question: A researcher wants to investigate whether the deleterious effects of alcohol are increased when one drinks on an empty stomach. She randomly assigns 20 participants to one of four conditions: (I) no alcohol, empty stomach; (II) no alcohol, full stomach; (III) alcohol, empty stomach; and (IV) alcohol, full stomach. Participants were asked to learn nonsense syllables, and were then given a recall test. The number correct out of 15 syllables was recorded, with the following results:
I: 14, 12, 15, 14, 13
II: 13, 15, 14, 12, 14
III: 8, 7, 5, 9, 12
IV: 10, 12, 14, 9, 11
What were the independent and dependent variables?
Using SPSS, analyse the data by a two-way ANOVA and interpret the results. Paste a copy of SPSS output.

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