An experimental protocol requires that a nutrient deficiency be induced to assess its effects on memory. What is the most appropriate study design to use to address this question?
A. Cell culture study
B. Animal experiment
C. Epidemiological study
D. Randomized controlled trial
Ans: B. Animal experiment
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What proportion of adults in the United States has high blood triglycerides?
a. 1/10 b. 1/4 c. 1/3 d. 1/2 e. 2/3
Phil is a participant in a study designed to examine the effects of taking a new protein-containing product on muscle tissue development. Phil suspects he's in the experimental group, because he's certain his muscles are bigger and stronger as a result of taking the product supplied by the researchers. When the study is completed, Phil learns that he didn't receive the new source of protein. Phil thinks the researchers made a mistake-he's certain his muscle mass increased while he consumed the product. According to this information, Phil's belief that his physical condition improved while he participated in the study is an example of
A. participant fatigue. B. an anecdotal report. C. human subject bias. D. the placebo effect.
When assessing acid–base balance, the _______________ response is determined first but an investigation of the _______________ response or compensation as well allows for a complete assessment.
Fill in the blank(s) with the appropriate word(s).
Calories from solid fats and/or added sugars provide few or no nutrients are termed _______.
A-Dietary Guidelines for Americans B-percent Daily Values. C-empty calories. D-nutrient-dense foods.