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

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 old head injuries, 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