True or False? Epidemiological studies of the relationship between an exposure and a disease are susceptible...
True or False? Epidemiological studies of the relationship between an exposure and a disease are susceptible to the disturbing influences of extraneous factors called confounders.
Homework Answers
true
(since confounding can occur as researcher is unaware of that and result in producing significant result)
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True or False? Epidemiological studies of the relationship
between an exposure and a disease are susceptible...
True or False 1. If a study finds statistically significant association between exposure and disease, that...
True or False 1. If a study finds statistically significant association between exposure and disease, that must mean that every person who is exposed will get the disease. 2. A survey can be reliable but still not close to the true value. 3. Bias is random deviation of results from the truth. 4. Screening for disease is one type of secondary prevention. 5. In order for an infectious disease to occur, there must be a susceptible host.
True or False 1. If a study finds statistically significant association between exposure and disease, that...
True or False 1. If a study finds statistically significant association between exposure and disease, that must mean that every person who is exposed will get the disease. 2. A survey can be reliable but still not close to the true value. 3. Bias is random deviation of results from the truth. 4. Screening for disease is one type of secondary prevention. 5. In order for an infectious disease to occur, there must be a susceptible host.
True or False 1.A key difference between analytic and descriptive studies this that analytic studies are...
True or False 1.A key difference between analytic and descriptive studies this that analytic studies are causally oriented. True or False 2.If the relative risk of developing diabetes among residents of Springfield and Boston is 1 it means that the risk of developing diabetes is the same in both cities. True or False 3.Cohort studies are often used to study rare health outcomes. True or False 4.Sensitivity and specificity of a screening test is the same in all populations. True...
Differentiate the differences between descriptive, experimental, case-control, cross-sectional, ecological, and cohort-studies in relationship to epidemiological studies....
Differentiate the differences between descriptive, experimental, case-control, cross-sectional, ecological, and cohort-studies in relationship to epidemiological studies. How would you choose the correct study? Please use at least 300 words to support your answer.
Because we are observing new cases of disease in a cohort study, what kind of relationship may we establish? Group of an...
Because we are observing new cases of disease in a cohort study, what kind of relationship may we establish? Group of answer choices Confounding Temporal Positive Negative Why might there be uncertainty with the association between an exposure and disease in an observational study? Group of answer choices The association may be due to the factors that led people to be exposed (e.g. confounders) rather than the exposure itself. Case-control studies are more valid, so they should be the standard...
study must be valid before its results can be generalized: 6 True or false 7. Experimental...
study must be valid before its results can be generalized: 6 True or false 7. Experimental studies always have less confounding than observational studies: True or false 8. Lead time is the amount of time that the disease diagnosis is advanced by screening True or false Special cohort studies are the most sensible design for examining many exposures in relation to a single disease. 9. True or false I 10. A causal relationship between an exposure and a disease cannot...
1-The answer is true or false a-Random errors arise from both measurement errors and sampling variation....
1-The answer is true or false a-Random errors arise from both measurement errors and sampling variation. True False b-Sampling variability stems from inaccuracies in assessing the exposure and disease occurrence. True False c-Just like bias and confounding, random errors are considered systematic errors. True False d- In addition to the p-value, the confidence interval is another method for estimating the amount of random error in epidemiological studies. True False
Question 1: All the following statements are true for the odds ratio except: Question 1 options:...
Question 1: All the following statements are true for the odds ratio except: Question 1 options: can be calculated obtained from case-control studies. it is the incidence between the exposed divided the incidence between the un-exposed. it is an estimate of relative risk. it tends to be biased towards 1. Save Question 2 (1 point) Question 2: The analysis of epidemiological studies is based on the following except: Question 2 options: contingency tables statistics that measure effects measuring the confounders...
QUESTION 6 Which of the following is true about the relationship between stress and vitamins? a....
QUESTION 6 Which of the following is true about the relationship between stress and vitamins? a. vitamins become toxic when we are under stress b. the stress response may deplete our bodies of certain vitamins c. a relationship between stress and vitamins has not been established d. A and B are both correct A B C D QUESTION 7 "going with the flow", accepting what you cannot change, and learning to be flexible is an example...
Susceptible.java interface Susceptible { public boolean infect(Disease disease); public void forceInfection(Disease disease); public Disease getCurrentDisease(); public...
Susceptible.java
interface Susceptible
{
public boolean infect(Disease disease);
public void forceInfection(Disease disease);
public Disease getCurrentDisease();
public void setImmune();
public boolean isImmune();
public Point getPosition();
}
Movable.java
interface Movable
{
public void move(int step);
}
public class Point {
private int xCoordinate;
private int yCoordinate;
/**
* Creates a point at the origin (0,0) and colour set to black
*/
public Point(){
xCoordinate = 0;
yCoordinate = 0;
}
/**
* Creates a new point at a given coordinate and colour...
study must be valid before its results can be generalized: 6 True or false 7. Experimental studies always have less confounding than observational studies: True or false 8. Lead time is the amount of time that the disease diagnosis is advanced by screening True or false Special cohort studies are the most sensible design for examining many exposures in relation to a single disease. 9. True or false I 10. A causal relationship between an exposure and a disease cannot...
Susceptible.java
interface Susceptible
{
public boolean infect(Disease disease);
public void forceInfection(Disease disease);
public Disease getCurrentDisease();
public void setImmune();
public boolean isImmune();
public Point getPosition();
}
Movable.java
interface Movable
{
public void move(int step);
}
public class Point {
private int xCoordinate;
private int yCoordinate;
/**
* Creates a point at the origin (0,0) and colour set to black
*/
public Point(){
xCoordinate = 0;
yCoordinate = 0;
}
/**
* Creates a new point at a given coordinate and colour...
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