Question

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.

Answer 1

1. FALSE

If a study finds a statistically significant association between exposure and disease, it means mean that most of the individuals who are exposed will get the disease.

2. TRUE

A survey is performed on a sample population.

A survey can be reliable but still not close to the true value.

3. TRUE
Bias = Disproportionate inclination from the actual value
Bias is a random deviation of results from the truth.

4. TRUE

Secondary prevention aims at preventing the disease even before the infection
Screening for disease is one type of secondary prevention.

5. TRUE

In order for an infectious disease to occur, there must be a susceptible host.