We want to compare the scores of different groups on a measure of ...

[appyboo]

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

Question 2

The familywise error rate is
 
  a. the probability of at least one Type I error in a set of comparisons.
  b. the probability of no Type I errors.
  c. the number of Type I errors that you are likely to make.
  d. the probability of a Type II error.

[jxjsniuniu]

Answer to Question 1

A

Answer to Question 2

A

[appyboo]

Thank you

[jxjsniuniu]

No problem