Stan Is Conducting a Class Research Project in Which He

Multiple Choice

Stan is conducting a class research project in which he randomly assigns participants to two groups: one group of participants remains sober during the study and the other group of participants consumes 2 ounces of 75 proof alcohol. The dependent or outcome variable is manual dexterity. What statistical test should Stan use to determine whether the two groups differ in manual dexterity after the manipulation?

A) independent samples t test
B) correlated t test
C) chi square
D) two-way analysis of variance