Test Information Description For this exam, read: Gorai, AK, Tuluri, F, Tchounwo

ID: 235717 • Letter: T

Question

Test Information

Description

For this exam, read:

Gorai, AK, Tuluri, F, Tchounwou, PB. A GIS-Based Approach for Assessing the Association between Air Pollution and Asthma in New York State, USA. Int J Environ Res Public Health. May 2014; 11(5): 4845–4869.

Available at: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4053878/

Instructions

Carefully read the article and respond to the exam questions. The assessment is un-timed and you do not need to complete it in one sitting. The test will be available for the entirety of week 4, and will close on the last day (Wednesday, July 29, 2015, at 11:59 pm).

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Multiple Attempts

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QUESTION 1

(.5 pts) Population ecology attempts to explain the dynamics of species populations and interaction among species, as well as, relationships between species and their physical environment.

True

False

0.5 points

QUESTION 2

The concentration of Carbon Dioxide in the atmosphere 2005 has:

Has actually decreased during the same timeframe

Is about the same

Increased over that measured during preindustrial times

0.5 points

QUESTION 3

The Industrial Hygiene (IH) paradigm is summarized as recognition, evaluation, and control. Recently _______________ was added

planning

testing

anticipation

none of the above

0.5 points

QUESTION 4

The basic measuring devices in IH are:

Sample collection

All of the above

Direct reading

Biological monitoring

Passive sampling

0.5 points

QUESTION 5

The LD50 dose for table salt is:

1000 mg/kg

2400 mg/kg

100 mg/kg

5600 mg/kg

0.5 points

QUESTION 6

Hepatoxins affect the

Central Nervous System (CNS)

Liver

Kidney

DNA

0.5 points

QUESTION 7

The primary reason randomized clinical trials are impractical to test the effects of toxic exposures is because:

Too expensive

None of the above

Cannot ethically administer toxic substances to human patients

The group required is large

0.5 points

QUESTION 8

A type of bias is

gender

race

selection

All of the above

0.5 points

QUESTION 9

Three principle designs for observational studies are a cohort, case-control, and cross-sectional.

True

False

0.5 points

QUESTION 10

If you only have access to information about the historical exposure and disease incidence of a cohort group, what study design would you recommend?

Either

Neither

Retrospective

Prospective

0.5 points

QUESTION 11

To date about 1,000 candidate genes (mostly metabolism, DNA repair, and cell cycle genes) have been re-sequenced by EGP.

True

False

0.5 points

QUESTION 12

Would a study have statistical significance if the p is less than .05 and the odds ratio range did not include 1.0?

Yes
No

0.5 points

QUESTION 13

This article attempts to link air pollution to asthma in US cities:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4053878/

To answer this question:

Critique the article for Statistical Significance.

Discuss how the article could be improved.

Explain whether you agree with the authors' conclusions, and why or why not.

Description

For this exam, read:

Available at: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4053878/

Instructions

Multiple Attempts

Not allowed. This test can only be taken once.

Force Completion

This test can be saved and resumed later.

Explanation / Answer

1. True: Population ecology attempts to explain the dynamics of species population, their interrelationships i.e interaction between species population and among species and between species and their environment.

2. c. The concentration of CO2 in atmosphere in 2005 has increased to that measured in preindustrial time.

3.c. It includes anticipation,recognition,evaluation,control of environmental hazards that originate in workplace and can cause injury, impairment or illness in the workers.

4.d basic measuring device in IH are samping, passive samling as well as biological monitoring

5.b. The LD50 dose for table salt is 3000 mg/kg ie. approximately more closer to 2400 mg/kg

6. b. Hypotoxin is a chemical substance which cause damage to liver

7. c.Clinical trials are impractical to test effect of toxic exposures because it is unethical to administer toxic substances to human patients.

8.c. Bias is a type of selection in which the selection of data or group of people is such that it is not randomly distributed and hence ensures that the sample obtained does not represent a population

9. True

10. we would recommend retrospective studies if only have information about the historical exposure and disease incidence of cohort group

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Test Information Description For this exam, read: Gorai, AK, Tuluri, F, Tchounwo

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