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# (Solved): It has been suggested that pupil size increases during emotional arousal. A researcher would, ther ...

It has been suggested that pupil size increases during emotional arousal. A researcher would, therefore, like to see whether the increase in pupil size is a function of the type of arousal (pleasant versus aversive). A random sample of five participants is selected for the study. Each participant views all three stimuli: neutral, pleasant, and aversive photographs. The neutral photograph portrays a plain brick building. The pleasant photograph consists of a young man and woman sharing a large ice cream cone. Finally, the aversive stimulus is a graphic photograph of an automobile accident. Upon viewing each stimulus, the pupil size is measured (in millimeters) with sophisticated equipment. The data are as follows. Use it to test whether pupil size varies based on type of arousal. 10. In this specific scenario, what is the independent variable? Is it between or within subjects? How many levels does it have, and what are they? ANSWER 11. Paste all relevant statistical output in the space provided below (please also list the steps for SPSS so that I may learn how to get the answer for myself): ANSWER 12. Create an appropriate graph in SPSS and paste it in the space provided below (please also list the step for SPSS so that I may learn how to get the answer for myself): ANSWER 13. Present the results using APA format. This includes a full write-up to include a complete statistical notation as shown in the weekly presentations. The write-up also needs interpretation. If significant, state how. If it is not significant, what does that mean in layman's terms? Additional examples of APA results sections are also available in the "Helpful Hints" document. (5 pts) ANSWER

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