Which of the Following Represents the Results of Well-Controlled Studies

question 7

Multiple Choice

Which of the following represents the results of well-controlled studies of vitamin C supplementation on the resistance to, and recovery from, colds?

• A)There was a reduction in the duration of colds by 50% on the average
• B)There was only a minor effect on reducing the number and severity of colds
• C)There was a significant reduction in the duration of colds in people who consumed at least one gram a day
• D)There was a significant reduction in the number of colds only in people who consumed more than three grams per day

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Definitions:

In-Depth Interviews

A qualitative research technique involving detailed, personal interviews to gain in-depth understanding of an individual's perspectives.

Qualitative Data

Data that approximates or characterizes but does not measure the attributes, characteristics, properties, etc., of a thing or phenomenon. Qualitative data describes qualities or characteristics that are observed but not measured.

Survey

A systematic means of collecting information from people that generally uses a questionnaire.

In-Depth Interviews

Qualitative research methods involving detailed, open-ended conversations with individuals to explore their thoughts, feelings, and behaviors on a particular subject.