As a child, jackson demonstrated odd and eccentric behavior that was ignored by his parents, who were both drug addicts. at 15, he was taken from his home and placed into foster care; then, at 20, he was diagnosed with schizophrenia. the mental health providers were not optimistic about his responsiveness to treatment because of the long-term development of the disorder. jackson most likely has schizophrenia.

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.