SmartBook Terms Ch 2
A substance that alters bodily functions. Can produce beneficial and harmful effects. Regulated strictly by the FDA.
Drug
Steps of experimental epidemiological research
Make observations, Develop a hypothesis, Design the study and perform tests, analyze data and draw conclusions, share results with peers
What type of assignment of subjects to groups in a research study helps to ensure that members of treatment and control groups have similar characteristics, validating the results of the study
random
A college trained health-care professional who has extensive knowledge of foods and nutrition
registered dietitian
evidence based information is supported by
scientific studies
What occurs after completing an expirement
scientists seek to publish results in scientific journals, figure out of the findings support or do not support hypothesis, and summarize their findings
Epidemiologists rely on (X) people to obtain health data
surveys, physical examinations
What is a personal endorsement of a product
testimonial
dietary supplements can interact and influence with other medications
true
A factor such as a person's weight, age, or environment can change influence on an outcome
variable
What is true about control groups?
Results of experiment are unclear or inaccurate if no control group is used
John telling his friends about is weight loss is what kind of information
anecdotal
What is true about medicinal herbs
can interact negatively with other herbs, or medications, and should be treated as drugs
observational epidemiological research includes
cohort studies, case-control studies
A group that does not receive treatment, and allows researchers to determine if a treatment has any effect
control
when two variables have a relationship they are said to be in (X) with each other but you cannot say there is a cause and effect relationship
correlation
What kind of study can not establish cause and effect
epidimiological
What is a systematic what of testing a hypothesis
expirement
consumers are often unaware that the FDA regulates dietary supplements as
food
a true nutrition expert
has experience in the application of scientific methodology, is usually a registered dietitian, has extensive college coursework in nutrition
nutrient deficiency diseases are a results of
lack of proper nutrition, poor diets
Before an article can be published, a critical analysis of the article is conducted by the fellow research colleagues. This process is called
peer review
nutrition misinformation, or nutrition fiction
promotes special products, uses personal testimonials, is widespread in American culture