Reference no: EM132299866

Epidemiologic Methods for Health Promotion and Disease Prevention Assignment -

Text book: Epidemiology for Advanced Nursing Practice ISBN: 1449639445.

The questions are some true or false, multiple choice and short answer, but all require a rational.

Decide if the following statements are true or false and provide a rationale for your response.

1. "How much does a 5-pound bag of potatoes weigh" is an appropriate statistical question.

2. Ordinal data is capable of being ranked.

3. A type I error is failing to reject the null hypothesis when it is false.

4. The power of a test is a measure of the likelihood of rejecting false hypotheses.

5. The use of survival analysis and modeling is confined to mortality studies.

Select the one correct answer to each of the following questions and provide a rationale for your response.

1. The degree of linear association between two variables (bounded on the interval negative 1 to positive 1) is the

a. correlation coefficient.            

2. Hypotheses typically arise from

a. exhaustive tests.

b. type II errors.

c. some sort of mind experiment.

d. statistical software packages.

3. The level of significance that is often chosen for a study is

a. 1%.

b. best determined after the study is completed.

c. 5%.

d. 10%.

4. Interval data are

a. nominal

b. ordinal.

c. measured on a Likert scale.

d. not used in epidemiological studies

5. A commonly used measure of spread is

a. the range.

b. standard deviation.

c. correlation coefficient.

d. both a and b, above

6. Crude birth rate is defined as the

a. number of live births per 1,000 population.

b. number of live births per community.

c. births over one year of time.

d. number of live births per 1,000,000 population.

7. In epidemiology, probability is typically described as

a. scatter plots.

b. risk.

c. the log-rank test.

d. logistic regression.

8. The most commonly used statistical model for incidence rates is the

a. Poisson model.

b. Kaplan-Meier estimate.

c. PASW.

d. SAS.

9. Gender is an example of

a. ordinal data.

b. interval data.

c. ratio data.

d. nominal data.

10. The most commonly used type of regression modeling is

a. logistic regression.

b. attributable risk.

c. the linear model.

d. none of the above.

Give a brief answer to each of these questions.

1. Give a simple definition of 2 × 2 tables.

2. How do a census and a sample differ?

3. What is the difference between prevalence measures and incidence measures?

4. Name some statistical packages that are available.

5. If probabilities are assigned subjectively, who might assign them?