A Psychologist's Is Studying the Affects of Ritalin on Concentration

question 16

Multiple Choice

A psychologist's is studying the affects of Ritalin on concentration in 40 children that have been matched on age and IQ.Twenty of the children receive Ritalin and are asked to take an exam that measures their concentration.The other 20 children did not receive Ritalin,but a placebo pill and took the same exam.What statistical test is appropriate for this study?

• A)Correlate t-test
• B)Independent t-test
• C)One-way ANOVA (between subjects)
• D)ANOVA (repeated measures)
• E)Two-way ANOVA (between subjects)

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