Question

QUESTION 1

1. A type of data measured in unrestricted measurable quantities is:

   	A.	Discrete
   	B.	Continuous
   	C.	Ordinal
   	D.	Nominal

2 points   

QUESTION 2

1. One way to control for age as a confounder is to use age-adjusted rates.

   True

   False

2 points   

QUESTION 3

1. Useful for measuring diseases that are difficult to pinpoint when an individual becomes a case, and for describing the magnitude of a public health problem is the:

   	A.	Mortality rate
   	B.	Person-time rate
   	C.	Secondary attack rate
   	D.	Point prevalence proportion

2 points   

QUESTION 4

1. Epidemiologic investigations of racial/ethnic disparities may fail to capture:

   	A.	Biological differences
   	B.	Genetic differences
   	C.	Cultural differences
   	D.	Gender differences

2 points   

QUESTION 5

1. Discrete data is measured in fixed amounts.

   True

   False

2 points   

QUESTION 6

1. What monitors and compares changes in population age distributions over time?

   	A.	Epidemic curve
   	B.	Box plot
   	C.	Line graph
   	D.	Population pyramid

2 points   

QUESTION 7

1. What displays data in quartiles, and shows the median, minimum, and maximum of data?

   	A.	Stem and leaf plot
   	B.	Histogram
   	C.	Bar charts
   	D.	Box plot

2 points   

QUESTION 8

1. Which epidemiologic study may be used to assess the role of environment and genetics on disease?

   	A.	Ecologic
   	B.	Occupational
   	C.	Case
   	D.	Twin

2 points   

QUESTION 9

1. If the coefficient of determination is r² = 0.27, then 27% of the variation within the dependent variable is accounted for by the independent variable.

   True

   False

2 points   

QUESTION 10

1. The term “healthy worker effect” refers to populations of employed workers having a lower mortality rate than the general population.

   True

   False

Answer 1

1.B.contineous.

2.false

3.B.person time rate.

4.A.biological differences.

5.True.

6.line graph

7.bar charts

8.Ecologic