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Describe the food frequency method of nutrition data collection, and list its advantages and disadvantages.
Retrospective Study
A research design that looks back in time to analyze data from past records to investigate a particular outcome or phenomenon.
Prospective Study
A research design that follows participants forward in time to examine the relationship between specific exposures and outcomes.
Clinical Trial
A research design that tests the effects of medical treatment. Many clinical trials are randomized controlled trials that allow researchers to determine whether a new treatment is or is not effective.
Ex Post Facto Study
A research design that examines the effects of an independent variable on a dependent variable, where the study is conducted after the events have occurred.
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Q68: _ protein refers to skeletal muscle.