what is one benefit of using a large sample size in an experiment
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Nutrition Final Exam

1. What is one benefit of using a large sample size in an experiment?

Correct answer: A

Rationale: Corrected Rationale: Using a large sample size reduces the likelihood of chance variation affecting the results, providing more reliable data. Choice B is incorrect because the placebo effect is related to participants' beliefs, not sample size. Choice C is incorrect as double-blind refers to a method of reducing bias, not directly related to sample size. Choice D is incorrect because the similarity between the control and experimental groups is not solely dependent on sample size.

2. Which nutrient source yields more than 4 kcalories per gram?

Correct answer: A

Rationale: The correct answer is plant fats (Choice A). Fats, including plant fats, provide 9 kcalories per gram, which is more than 4 kcalories. Plant proteins (Choice B) and animal proteins (Choice C) provide 4 kcalories per gram. Plant carbohydrates (Choice D) also provide 4 kcalories per gram. Therefore, Choices B, C, and D are incorrect because they do not yield more than 4 kcalories per gram.

3. How should a healthcare provider assist in the management of a child with type 1 diabetes?

Correct answer: B

Rationale: For the management of type 1 diabetes in a child, scheduling frequent blood glucose tests is essential. These tests help in monitoring blood sugar levels, adjusting insulin doses, and ensuring proper glucose control. Choices A, C, and D are incorrect. Providing high-carbohydrate snacks can lead to blood sugar spikes, increasing dietary fat intake is not recommended, and encouraging a high-protein diet is not a standard recommendation for managing type 1 diabetes in children.

4. A child develops a strong dislike of noodle soup after consuming a bowl while sick with the flu. Her reaction is an example of a food-related ___.

Correct answer: D

Rationale: The correct answer is 'negative association.' A negative association occurs when a person develops a dislike for a food due to a past negative experience, such as getting sick after eating it. In this case, the child's dislike of noodle soup is specifically linked to the negative experience of consuming it while sick with the flu. Choices A, B, and C are incorrect because the situation described does not relate to habit formation, social interactions, or emotional turmoil, but rather to a learned aversion based on a specific negative event.

5. What is a common early sign of type 1 diabetes in children?

Correct answer: A

Rationale: Excessive thirst and frequent urination are common early signs of type 1 diabetes in children. These symptoms occur due to high blood glucose levels, leading to increased thirst and urination. Severe abdominal pain (choice B) is not typically associated with type 1 diabetes. Although frequent headaches (choice C) can occur in some cases, they are not as specific to type 1 diabetes as excessive thirst and frequent urination. Sudden weight gain (choice D) is not a common early sign of type 1 diabetes; in fact, unexplained weight loss is more characteristic of the condition.

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