Nutrition Chapter 2 PostTest

Which of the following features is a "red flag" indicating that the source of nutrition information is unreliable?

-use of vague, meaningless scientific terms -simplistic conclusions -use of disclaimers such as "results may vary"

Which of the following statements is false?

All nutritionists are registered dietitians.

The organization responsible for monitoring and enforcing consumer protection laws and for investigating complaints about false or misleading health claims that appear on the Internet is the:

Federal Trade Commission

Which of the following journals is not a peer-reviewed nutrition or medical journal?

Ladies Home Journal

Which of the following statements is true?

The Dietary Supplement and Health Education Act of 1994 allows manufacturers to classify certain herbal products and nutrient supplements as foods.

An _____ is a personal report or experience, such as how taking megadoses of vitamin C influenced one's health.

anecdote

A researcher has 200 participants who have high blood pressure and 200 participants who have similar characteristics but their blood pressure is normal. She collects dietary intake information for all study participants and evaluates the levels of fish consumption to determine if eating fish regularly has any effect on blood pressure. This is an example of a/an _____ study.

case-control

A/an _____ study is one in which neither the participants nor the researchers are aware of who is receiving the placebo or the experimental treatment.

double-blind

A researcher wants to determine if colon cancer is more prevalent in Japanese males or American males. To make this determination he will conduct a/an _____ study.

epidemiological

A researcher is conducting a study where she has all participants consume 8 ounces of yogurt per day for 3 months. Some of the yogurt has added live bacteria and some does not. The researcher wants to evaluate if the added live bacteria has a benefit in preventing diarrhea. The group of subjects receiving the yogurt with added live bacteria is called the _____ group.

experimental

T or F: A prospective study is one that identifies a group of people who already suffers from a disease and compares their dietary intakes to a group of people with similar characteristics who do not have the disease.

false

T or F: An "in vitro" experiment is one that is conducted on whole living organisms such as rats.

false

T or F: In general, when using the Internet a commercial ".com" site will be a more reliable source of scientifically based health advice than a ".gov" or an ".org" site.

false

_____ is the presentation of health information that appears to be factual and obtained by scientific methods, when it is actually not based on facts or scientific evidence.

pseudoscience

T or F: Nutrition is an evolving science, therefore, new dietary advice can be expected regularly.

true

A _____ is a factor such as a person's age, weight, or environment that can change and influence results of a study.

variable