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Feedback: This prediction conflicts with the hypothesis. Refer to Lesson 1 formore information.Chapter: 3DOK: 329.Scientists randomly assign subjects to a low- or high-carbohydrate group and thenlook at changes in body weight over 3 months. Which item represents theindependent variable in this study?a.Body weightFeedback: An independent variable is a variable that scientists manipulate inan experiment. Body weight cannot be manipulated in this study. Refer toLesson 3 for more information.b. Diet typec.Length of study (3 months)Feedback: The length of the study is fixed. Refer to Lesson 3 for moreinformation.d. SubjectsFeedback: The subjects in a study are fixed and stay the same throughout
the study. Refer to Lesson 3 for more information.Chapter: 3DOK: 330.Seven studies show Diet A lowers cholesterol more than Diet B. Three studies showno difference. Assuming all the studies are equivalent in quality, which item bestdescribes this situation?
Chapter 3 Quiz QuestionsFeedback: Evidence provided from the study indicates that the researchersshould know more. Refer to Lesson 1 for more information.b.The weight of the evidence suggests that Diets A and B are equivalent in theirability to lower cholesterol.Feedback: Evidence provided from the study indicates this is not the case.Refer to Lesson 1 for more information.c.The weight of the evidence suggests Diet A is more effective forlowering cholesterol than Diet B, but more data is needed.d.There are insufficient studies to conclude that Diet A lowers cholesterol morethan Diet B.Feedback: Multiple consistent studies are present and indicate this is notnecessarily the case. Refer to Lesson 1 for more information.Chapter: 3DOK: 331.Fructose has been shown in studies to have adverse effects on blood triglycerideswhen consumed in excess of calorie needs. However, moderate doses of fructosehave been shown to have no effect. Which of the following items best describes theconclusion that should be drawn from this data?

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Term
Fall
Professor
professor_unknown
Tags
Epidemiology, Randomized controlled trial, Study design, nutrition coach

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