CNS Research Methods

Question 1

In Certified Nutrition Specialist Exam, what is the purpose of a literature review in research methods?

Accepted Answer

To survey existing research and identify gaps that the current study addresses

Answer

To copy findings from other researchers

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To list all publications by a single author

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To determine the budget for the study

Question 2

What is the difference between qualitative and quantitative research in Certified Nutrition Specialist Exam?

Accepted Answer

Qualitative explores experiences and meanings; quantitative measures and counts numerical data

Answer

Qualitative is always more rigorous than quantitative

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Quantitative cannot be used in social sciences

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There is no meaningful difference between them

Question 3

In Certified Nutrition Specialist Exam, what does "statistical significance" mean?

Accepted Answer

The result is unlikely to have occurred by chance alone (typically p < 0.05)

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The result is practically important in real-world terms

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The study used a large sample size

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The findings confirm the researcher's hypothesis

Question 4

What is a "control group" in Certified Nutrition Specialist Exam research?

Accepted Answer

A group that does not receive the experimental treatment, serving as a baseline comparison

Answer

The group that receives the experimental treatment

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A group of researchers overseeing the study

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The largest group in any experiment

Question 5

In Certified Nutrition Specialist Exam, what is sampling bias?

Accepted Answer

A systematic error where some members of a population are more likely to be selected than others

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Selecting a perfectly representative sample

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Using the largest possible sample size

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Randomly selecting participants from the entire population

Question 6

What is the purpose of peer review in Certified Nutrition Specialist Exam research methods?

Accepted Answer

To have qualified experts evaluate research quality before publication

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To allow friends to proofread for spelling errors

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To speed up the publication process

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To guarantee that all research is approved