Chapter 13

Question 1

Meta Analysis

Answer 1

An analysis of multiple papers on the same topic, with different methods.

Question 2

what are the four steps of Meta Analysis?

Answer 2

1) collect papers
2) create common metric for papers through reading them
3) develop a system to code the dimensions of the study
4) derive a trend in the data(conclusions).

Question 3

what are some problems with Meta Analysis?

Answer 3

1) the N is going to be different between the studies (you can weigh the studies differently based on the N).
2) software for doing weights and analysis is expensive.

Question 4

heterogeneity

Answer 4

the quality or state of being diverse in character or content

Question 5

what are the two types of rate analysis/

Answer 5

1) what rate do people exhibit symptoms of a disease (how many kids have the flu in the 3rd grade today).
2) Rate of performance/outcome on some test.

Question 6

Incidence

Answer 6

the number of new cases over some period of time

Question 7

prevalence

Answer 7

how many total people have it now, today, in total.

Question 8

what study do you use to find incidence

Answer 8

longitudinal study

Question 9

what study do you use to find prevalence

Answer 9

cross-sectional study

Question 10

Sensitivity

Answer 10

proportion of people with the disease that also tested positive

Question 11

specificity

Answer 11

the proportion of people without the disease who tested negative.

Question 12

False negative

Answer 12

testing negative when you are postive

Question 13

false positive

Answer 13

testing positive when you are negative