---

1) Which one of the following statements regarding pre-post clinical trial is most appropriate?

One answer only.

1. They cannot be randomized.

2. They are useful in studies involving mortality.

3. They use the patient as his or her own control.

4. They are usually easier to interpret than the comparable parallel clinical trial.

---

2) Mean and standard deviation can be worked out only if data is on:

One answer only.

1. Interval/Ratio Scale.

2. Dichotomous scale.

3. Nominal scale.

4. Ordinal scale.

---

3) For a negatively skewed data mean will be:

One answer only.

1. Less than median.

2. More than median.

3. Equal to median.

4. One.

---

4) Which of the following is the national level system that provides annual national as well as state level reliable estimates of fertility and mortality?

One answer only.

1. Civil Registration System. -

2. Census.

3. Adhoc Survey.

4. Sample Registration System.

---

5) National Family Health Survey has successfully completed:

One answer only.

1. One round.

2. Two rounds,

3. Three rounds.

4. Four rounds.

---

6) 83. The following is tme about prevalence and incidence:

One answer only.

1. Both are rates.

2. Prevalence is a rate but incidence is not.

3. Incidence is a rate but prevalence is not.

4. Both are not rates.

---

7) The age and sex structure of a population may be described by a:

One answer only.

1. Life table.

2. Correlation coefficient.

3. Population pyramid.

4. Bar chart.

---

8) The rate adjusted to allow for the age distribution of the population is:

One answer only.

1. Perinatal mortality rate.

2. Crude mortality rate.

3. Fertility rate.

4. Age-standardized mortality rate.

---

9) A one day census of in-patients in a mental hospital could:

One answer only.

1. Give good information about the patients in that hospital at that time.

2. Give reliable estimates of seasonal factors in admissions.

3. Enable us to draw conclusions about the mental hospitals of India.

4. Enable us to estimate the distribution of different diagnosis in mental illness in the local area.

---

10) If the prevalence is very low as compared to the incidence for a disease, it implies:

One answer only.

1. Disease is very fatal and/or easily curable.

2. Disease is non-fatal,

3. Calculation of prevalence & incidence is wrong.

4. Nothing can be said, as they are independent.