Ch 2

Question 1

How is the scientific method used to determine health-related facts?

Answer 1

1. Self-correcting
   requires objectivity
   experiments must be reproducible

Question 2

What are the 4 types of research design used to investigate health and disease?

Answer 2

1. Case studies
   lab experiments
   epidemiological studies
   controlled clinical trials

Question 3

Name the steps involved in the scientific method

Answer 3

1. Ask a question
background research
construct hypothesis
test hypothesis by experiment
analyze data and draw conclusion
communicate results

Question 4

What things to epidemiologists look for before concluding their research?

Answer 4

Risk Markers
predictors of a disease
are they casual or coincidental?
association- strength and consistency
did marker precede disease?

Question 5

What are sources of statistical error and misuse?

Answer 5

1. Bias
   omission of important factors
   insufficient data

Question 6

What are some of the problems associated with accurate health information?

Answer 6

1. Reliability of sources
   non pros, celebrities
   pseudo scientists
   online info

Question 7

Why is peer-review important?

Answer 7

1. Others who have equivalent knowledge

Question 8

What suggestions could you give someone to be a better consumer?

Answer 8

1. Beware of web-sites
   judge credibility
   be wary of claims