Exam 2: Evaluating Nutrition Information

Actress Lotta Talent appears in commercials endorsing a dietary supplement containing a substance from dandelions for weight loss.Her endorsement is an example of a(n)________.

Which of the following statements is true?

A nutrition researcher adds 30 mg of the mineral iron to the daily diet of 50 4-week-old laboratory mice.After ten weeks,the scientist takes blood samples from each mouse.According to his findings,the mice developed abnormal levels of certain enzymes in their red blood cells.Based on this information and your knowledge of scientific research,what would you tell him?

A group of nutrition researchers interviews 100 adults who have chronic high blood pressure to determine whether there is an association between consuming diets low in calcium during adolescence and developing high blood pressure in adulthood.This study is an example of a ____ study.

_____ can be classified as a dietary supplement.

Which of the following statements is true?

Which of the following statements is true?

Which of the following observations is an example of a positive correlation?

A scientist adds 5 mcg of the mineral cadmium to the daily diet of 100 4-week-old laboratory mice.After twelve weeks,the researcher weighs and takes blood samples from each mouse.According to her findings,the mice lost weight during the 12-week period and they have abnormal levels of certain hormones in their blood.Based on this information and your knowledge of scientific research,what would you tell the researcher about her findings?

Which of the following periodicals features peer-reviewed articles?

Which of the following kinds of studies would be the best to use to identify lifestyle factors that may be related to the development of liver cancer in an adult population?

Which of the following observations is an example of a negative (an inverse)correlation?

Scientists would like to conduct a study to identify lifestyle factors that are associated with delayed physical growth among a group of low-income American children.Which of the following research designs would be the best for the researchers to use when designing their study?