We Want to Compare the Scores of Different Groups on a Measure

question 66

Multiple Choice

We want to compare the scores of different groups on a measure of reaction time. Three different groups were studied: patients with recent head injuries, patients with head injuries that occurred a year ago, and a control group of non-injured people. We want to know which group of people has the fastest reaction time. What is the best statistical test to use to find this out?

• A) one way ANOVA
• B) factorial ANOVA
• C) paired samples t-test
• D) correlation

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