Mario recently came to the united states through a study abroad program and currently works in the financial aid office at his college. the other day his supervisor asked him for his opinion about the office filing system. mario felt uncomfortable with this question and responded by saying, whatever way you want it, thats fine by me. it is likely that mario comes from a

Dr. redbull conducts a study to determine whether her new energy drink children perform better on spelling tests. she randomly assigns children to one of two groups: group 1 receives her energy drink and group 2 receives water. she then gives both groups a spelling test and compares the results. which of the following is true about this study? a. group 1 is the dependent variable and group 2 is the independent variable. b. this is a correlational study. c. group 2 is the experimental group. d. the independent variable is the type of drink the children receive.