Research Methods Flashcards
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Read the first 6 Research Methods flashcards as text
In Certified Nutrition Specialist Exam, what is the purpose of a literature review in research methods?
Answer: To survey existing research and identify gaps that the current study addresses
A literature review surveys and synthesizes existing research on a topic, establishing what is already known, identifying gaps or inconsistencies, and providing context and justification for the current study.
What is the difference between qualitative and quantitative research in Certified Nutrition Specialist Exam?
Answer: Qualitative explores experiences and meanings; quantitative measures and counts numerical data
Qualitative research explores experiences, perceptions, and meanings through methods like interviews and observation. Quantitative research measures variables numerically through surveys, experiments, and statistical analysis.
In Certified Nutrition Specialist Exam, what does "statistical significance" mean?
Answer: The result is unlikely to have occurred by chance alone (typically p < 0.05)
Statistical significance indicates that an observed result is unlikely to have occurred by random chance, typically when the p-value is less than 0.05 (5% probability of occurring by chance).
What is a "control group" in Certified Nutrition Specialist Exam research?
Answer: A group that does not receive the experimental treatment, serving as a baseline comparison
The control group does not receive the experimental treatment or intervention, providing a baseline against which the experimental group's results can be compared to determine the effect of the treatment.
In Certified Nutrition Specialist Exam, what is sampling bias?
Answer: A systematic error where some members of a population are more likely to be selected than others
Sampling bias occurs when the method of selecting participants systematically favors certain characteristics over others, resulting in a sample that does not accurately represent the target population.
What is the purpose of peer review in Certified Nutrition Specialist Exam research methods?
Answer: To have qualified experts evaluate research quality before publication
Peer review involves independent evaluation of research by qualified experts in the field, assessing methodology, validity, significance, and contribution to knowledge before publication.
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