A researcher wants to determine if an antioxidant supplement made from blueberries affects the cognitive functioning of

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A Researcher Wants To Determine If An Antioxidant Supplement Made From Blueberries Affects The Cognitive Functioning Of 1 (38.21 KiB) Viewed 15 times

A researcher wants to determine if an antioxidant supplement made from blueberries affects the cognitive functioning of elderly adults. A sample of n = 16 adults between the ages of 65 and 75 is obtained. The researcher uses a standardized test to measure cognitive performance for each individual. The participants then begin a two-month program in which they receive daily doses of the blueberry supplement. At the end of the two-month period, the researcher again measures cognitive performance for each participant. The comparison being made in this study is best described as It is not possible to tell from the description if the comparison being made in this study is between-subjects or within-subjects. between subjects between-subjects and within-subjects neither between-subjects nor within-subjects within-subjects