Question: In Chapter 8 (page 233) we presented an example of a research study examining how an antioxidant supplement (such as blueberries) affects the cognitive functioning of elderly adults. In the example, we compared one sample of adults who received the blueberry supplement with the general population. An alternative approach to the research question is to use a repeated-measures design. Suppose a researcher obtains a sample of n = 16 adults who are between the ages of 65 and 75. The researcher uses a standardized test to measure cognitive performance for each individual. The participants then begin a 2-month program in which they receive daily doses of the blueberry supplement. At the end of the 2-month period, the researcher again measures cognitive performance for each participant. The results show an average increase in performance of MD = 7.4 with SS = 1215. Does this result support the conclusion that the antioxidant supplement has a significant effect on cognitive performance? Use a two-tailed test with α = .05.