As part of an experimental study on neuropeptides and their effect on emotions, Hilda administers a certain chemical to a group of teenagers, which has been chosen as the sample. The effects of this chemical include a feeling of elation and a need for affiliation. The group of teenagers considered for research exhibits a need to socialize more with the people on campus. Which of the following is the group of teenagers likely to have been given? -Oxytocin
-Ghrelin
-Lutein
-Melanin

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Catherine sat down will all of her income details from the past year to calculate the total income she had in that period. after she created a consolidated income statement, she deducted some tax-exempt income details from the statement. what term would catherine use for this final income calculation?

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.