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